diff --git a/M02_MasterTemplete/M02_Doc_Sk_Path.py b/M02_MasterTemplete/M02_Doc_Sk_Path.py
index a7cd41b01..0b0da4de6 100644
--- a/M02_MasterTemplete/M02_Doc_Sk_Path.py
+++ b/M02_MasterTemplete/M02_Doc_Sk_Path.py
@@ -21,6 +21,7 @@ from M02_MasterTemplete import M02_Doc_Import as dim
 from M02_MasterTemplete import M02_Doc_Screen as screen
 from M02_MasterTemplete import M02_Doc_Sk as dsk
 from M02_MasterTemplete import M02_MasterTemplete_Store as store
+from M02_MasterTemplete import M02_MyMachine as mym
 from M02_MasterTemplete import M02_Sangeun_Copy as skc
 from M02_MasterTemplete import M02_Sangeun_Doc as sd
 
@@ -128,11 +129,22 @@ def edited(copy: dict, body: dict, key: str, sk: dict | None = None) -> dict:
         *(c for d in out.get("끊음", {}).values() for c in dc.calls(d)),
     ]
     if not dim.is_imported(sk):
+        out |= _mine(out)
         out["부름"] = dc.closure(dc.over(out), calls, copy.get("부름"))
     out["따로"] = True
     return out
 
 
+def _mine(copy: dict) -> dict:
+    """줄 쌓기에서 고른 내 기계(기계='개인 EQP…') 가운데 값 사본에 없는 것만 지금 값으로 더함
+    (821-3) — 그 뒤 내 기계를 고쳐도 금액 그대로 + 「단가새값」 · [단가 갱신] 으로 반영 ·
+    지워도 마지막 값."""
+    keys = mym.keys_in(copy.get("문서"))
+    if not keys or "로직" not in copy:
+        return {}
+    return skc.grow(dc.values_of(copy), skc.snap([], keys))
+
+
 def preview(key: str, body: dict) -> dict[str, Any]:
     """미리 셈(저장 없음) — {셈, 전, 후, 바뀐자원?, 버림?}."""
     doc = _file(key)["문서"]
diff --git a/M02_MasterTemplete/M02_MasterTemplete_UI_Side.ts b/M02_MasterTemplete/M02_MasterTemplete_UI_Side.ts
index f6d2d42c2..df39ccbcc 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_UI_Side.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_UI_Side.ts
@@ -158,36 +158,34 @@ export function buildSide(opt: SideOptions): SideHandle {
   });
   const sangeunSec = section(L("M02_SangeunTitle"), sangeun.body);
   // 내 기계 · 내 품목(821-3) — 자기 개인 층 · 펼치면 가운데 화면(목록 · 양식)
-  const hint = (): HTMLElement => createEmpty({ text: mt("Own_Note"), small: true });
-  const myMachSec = openOnExpand(section(mt("Title"), hint()), async () => {
+  const hint = (key: "Side_Hint" | "Items_Side_Hint"): HTMLElement =>
+    createEmpty({ text: mt(key), small: true });
+  const myMachSec = openOnExpand(section(mt("Title"), hint("Side_Hint")), async () => {
     if (!(await opt.confirmLeave())) return;
     let mark = (_d: boolean): void => {};
     const node = buildMyMachineView({ owner: null, setDirty: (d) => mark(d) });
     mark = opt.showView(mt("Title"), node);
   });
   myMachSec.dataset.myMachines = "";
-  const myItemsSec = openOnExpand(
-    section(mt("Items_Title"), createEmpty({ text: mt("Items_Note"), small: true })),
-    async () => {
-      if (!(await opt.confirmLeave())) return;
-      const node = buildMyItemsView({
-        owner: null,
-        openSk: async (u) => {
-          if (!(await opt.confirmLeave())) return;
-          opt.onOpen({
-            layer: "personal",
-            owner: null,
-            canWrite: true,
-            projectId: null,
-            kind: "sangeun",
-            name: u.키,
-            label: `${u.키} ${u.이름}`.trim(),
-          });
-        },
-      });
-      opt.showView(mt("Items_Title"), node);
-    },
-  );
+  const myItemsSec = openOnExpand(section(mt("Items_Title"), hint("Items_Side_Hint")), async () => {
+    if (!(await opt.confirmLeave())) return;
+    const node = buildMyItemsView({
+      owner: null,
+      openSk: async (u) => {
+        if (!(await opt.confirmLeave())) return;
+        opt.onOpen({
+          layer: "personal",
+          owner: null,
+          canWrite: true,
+          projectId: null,
+          kind: "sangeun",
+          name: u.키,
+          label: `${u.키} ${u.이름}`.trim(),
+        });
+      },
+    });
+    opt.showView(mt("Items_Title"), node);
+  });
   // 실무자료로 일위대가를 만들었음(확인 창 · 엑셀 보기 창) → 목록 다시 · 이 패널이 내려갔으면 듣기 끝
   const onBuilt = (): void =>
     precombo.body.isConnected
diff --git a/M02_MasterTemplete/M02_MyMachine_Form.ts b/M02_MasterTemplete/M02_MyMachine_Form.ts
index 454bd749a..c422dc61d 100644
--- a/M02_MasterTemplete/M02_MyMachine_Form.ts
+++ b/M02_MasterTemplete/M02_MyMachine_Form.ts
@@ -117,6 +117,7 @@ export async function mountMyMachineForm(
       checkSame();
     },
     onChange: () => {
+      notice.replaceChildren(); // 지난 저장 막힘 글 지움(다시 [저장] 때 새로)
       opt.onDirty?.(dirty());
       checkSame();
     },
diff --git a/M02_MasterTemplete/M02_MyMachine_Look.py b/M02_MasterTemplete/M02_MyMachine_Look.py
index fd6c12619..e288f4955 100644
--- a/M02_MasterTemplete/M02_MyMachine_Look.py
+++ b/M02_MasterTemplete/M02_MyMachine_Look.py
@@ -52,7 +52,7 @@ def find(q: str, limit: int = 30) -> list[dict]:
     ]
     exact = (m01.loaded()[1].numbers.get("EQ") or {}).get(q.strip())
     head = [exact] if exact is not None and not mym.mine(exact.get("키")) else []
-    m01_rows = [json.loads(json.dumps(r, default=float)) for r in head] + _m01m().find(q, limit)
+    m01_rows = [*head, *_m01m().find(q, limit)]
     seen = set()
     for r in m01_rows:
         if r["키"] in seen:
@@ -60,7 +60,7 @@ def find(q: str, limit: int = 30) -> list[dict]:
         seen.add(r["키"])
         brief = {k: r[k] for k in ("키", "원문번호", "이름", "규격", "값") if k in r}
         out.append({**brief, "구분": r.get("상세구분") or r.get("구분") or "", "출처": "M01"})
-    return out[:limit]
+    return json.loads(json.dumps(out[:limit], default=_m01m()._plain))  # Decimal → 수(글 아님)
 
 
 def _items_of(doc: dict) -> list[dict]:
diff --git a/M02_MasterTemplete/M02_MyMachine_Text.ts b/M02_MasterTemplete/M02_MyMachine_Text.ts
index 1423918ce..19b1e1732 100644
--- a/M02_MasterTemplete/M02_MyMachine_Text.ts
+++ b/M02_MasterTemplete/M02_MyMachine_Text.ts
@@ -38,6 +38,8 @@ const TEXT = {
   No_Uses: "쓰는 단가산출 없음",
   Leave_Ask: "저장 안 한 고침을 버리고 닫을까?",
   Mine: "내 기계",
+  Side_Hint: "펼치면 가운데에 목록 · 양식",
+  Items_Side_Hint: "펼치면 가운데에 모아 보기(읽기)",
   Won: "원",
   Labor: "노",
   Material: "재",
diff --git a/resources/tester/test_821_3_my_machine_screen.py b/resources/tester/test_821_3_my_machine_screen.py
index 4a2f26f6e..10039bce0 100644
--- a/resources/tester/test_821_3_my_machine_screen.py
+++ b/resources/tester/test_821_3_my_machine_screen.py
@@ -55,7 +55,7 @@ def test_find_mine_first_and_number(world):
     no = str(m01.loaded()[1].get(DIG)["원문번호"])
     first = _at(me, look.find, no)[0]
     assert first["키"] == DIG and first["원문번호"] == no and first["출처"] == "M01"
-    assert first["값"]["가격"] and first["구분"]
+    assert isinstance(first["값"]["가격"], int | float) and first["구분"]  # 수(글이면 미리보기 0)
     dig = [r for r in _at(me, look.find, "굴착기") if r["출처"] == "M01"]
     assert dig and len({r["키"] for r in dig}) == len(dig)  # 겹침 없음
 
@@ -98,3 +98,47 @@ def test_personal_only(world):
             look.get_items(layer, owner, user)
         assert e.value.status_code == code
     assert look.get_items("personal", None, user) == {"rows": []}
+
+
+def _stack_doc(key, no):
+    """줄 쌓기 기계 줄 하나(화면이 저장하는 꼴) — 기계='개인 …'."""
+    var = {"기호": "P", "아래": "새", "위": "", "이름": NAME, "단위": "",
+           "연결": {"갈래": "단가산출", "키": "GC000268", "입력": {"기계": f"'{no}'"}}}  # fmt: skip
+    line = {"이름": NAME, "단위": "hr", "비목": "묶음", "수량": "1", "단가": "P_새"}
+    return {"꼴": "수식문서", "판": 1, "키": key, "이름": "sub1임시", "결과단위": "원",
+            "변수": [var], "식": [], "금액": [line]}  # fmt: skip
+
+
+def test_stack_line_copy(world):
+    """⑤ 줄 쌓기로 고른 내 기계 — 미리 셈 됨 · 저장 때 값 사본에 박힘 →
+    고쳐도 금액 그대로 + 단가새값 → [단가 갱신] 바뀐 자원 1 → 지워도 마지막 값 + 지운키."""
+    from M02_MasterTemplete import M02_Doc_Sk_Path as path
+    from M02_MasterTemplete import M02_Labor_Ref as refs
+
+    me = world["personal"]
+    made = _at(me, mym.create, {**_mine_row(), "값": {**_mine_row()["값"], "주연료": 2,
+               "주연료종류": "경유", "조종원": 1, "조종원직종": "1048"}})  # fmt: skip
+    key, no, was = made["줄"]["키"], made["줄"]["원문번호"], made["시간당"]["계"]
+    sk = _at(
+        me,
+        lambda: refs.create("sangeun", {"이름": "sub1임시", "단위": "시간", "더한줄": []})["이름"],
+    )
+    doc = _stack_doc(sk, no)
+    look_ = _at(me, path.preview, sk, {"문서": doc})
+    assert look_["셈"]["계"] == was  # 사본에 아직 없는 내 기계도 셈
+    판 = _at(me, path.read, sk)["판"]
+    _at(me, path.save, sk, {"문서": doc, "판": 판})
+    copy = _at(me, lambda: store.read("sangeun", sk)["문서"]["수식"])
+    assert key in [r["키"] for r in copy["단가"]]  # 값 사본에 박힘
+    _at(me, mym.update, key, {**made["줄"], "값": {**made["줄"]["값"], "가격": 3000}})
+    now = _at(me, path.read, sk)
+    assert now["셈"]["계"] == was and now["사본"]["단가새값"] is True
+    job = _at(me, path.preview, sk, {"할일": "단가갱신"})
+    assert [x["키"] for x in job["바뀐자원"]] == [key] and job["후"]["계"] > was
+    _at(me, mym.delete, key)
+    gone = _at(me, path.read, sk)
+    assert gone["셈"]["계"] == was and gone["사본"]["지운키"] == [key]
+
+
+def _mine_row():
+    return {"이름": NAME, "규격": "1㎾", "방식": "바로", "값": {"가격": 1000, "손료계수": 2000}}