diff --git a/fusion_plating/fusion_plating/__manifest__.py b/fusion_plating/fusion_plating/__manifest__.py
index b9e282ab..0b3116b7 100644
--- a/fusion_plating/fusion_plating/__manifest__.py
+++ b/fusion_plating/fusion_plating/__manifest__.py
@@ -5,7 +5,7 @@
 
 {
     'name': 'Fusion Plating',
-    'version': '19.0.8.2.1',
+    'version': '19.0.8.3.0',
     'category': 'Manufacturing/Plating',
     'summary': 'Core plating / metal finishing ERP: facilities, processes, tanks, baths, jobs, operators.',
     'description': """
diff --git a/fusion_plating/fusion_plating/models/fp_job.py b/fusion_plating/fusion_plating/models/fp_job.py
index d1305640..54efbc38 100644
--- a/fusion_plating/fusion_plating/models/fp_job.py
+++ b/fusion_plating/fusion_plating/models/fp_job.py
@@ -82,6 +82,97 @@ class FpJob(models.Model):
         required=True,
     )
 
+    # ------------------------------------------------------------------
+    # Source / recipe / invoicing — core-safe (target models reachable
+    # via current depends: sale_management → sale → account, and our
+    # own fusion.plating.process.node).
+    #
+    # Plating-specific extensions (part_catalog_id, coating_config_id,
+    # customer_spec_id, portal_job_id, delivery_id, qc_check_id) are
+    # deferred to their owning modules via _inherit = 'fp.job' to avoid
+    # inverting the dependency graph. See spec §5.1.
+    # ------------------------------------------------------------------
+    sale_order_line_ids = fields.Many2many(
+        'sale.order.line',
+        'fp_job_sale_order_line_rel',
+        'job_id', 'line_id',
+        string='Source SO Lines',
+    )
+    recipe_id = fields.Many2one(
+        'fusion.plating.process.node',
+        string='Recipe',
+        domain=[('node_type', '=', 'recipe')],
+    )
+    start_at_node_id = fields.Many2one(
+        'fusion.plating.process.node',
+        string='Start at Node',
+        help='Rework: start the job at this recipe node (skip earlier).',
+    )
+    invoice_ids = fields.Many2many(
+        'account.move',
+        'fp_job_account_move_rel',
+        'job_id', 'move_id',
+        string='Invoices',
+    )
+
+    # ------------------------------------------------------------------
+    # Cost rollup — actual_cost stays at 0 until Task 1.5 wires step
+    # time × work_centre.cost_per_hour. quoted_revenue is a manual entry
+    # for now (will be filled by the SO → job hook in Phase 2).
+    # ------------------------------------------------------------------
+    currency_id = fields.Many2one(
+        'res.currency',
+        default=lambda self: self.env.company.currency_id,
+    )
+    quoted_revenue = fields.Monetary(
+        currency_field='currency_id',
+        help='From source SO.',
+    )
+    actual_cost = fields.Monetary(
+        currency_field='currency_id',
+        compute='_compute_costs', store=True,
+    )
+    margin = fields.Monetary(
+        currency_field='currency_id',
+        compute='_compute_costs', store=True,
+    )
+    margin_pct = fields.Float(
+        compute='_compute_costs', store=True,
+    )
+
+    @api.depends('quoted_revenue')
+    # NOTE: when fp.job.step lands in Task 1.5, this dependency expands
+    # to include 'step_ids.cost_total'. For now actual_cost is always 0.
+    def _compute_costs(self):
+        for job in self:
+            job.actual_cost = 0.0
+            job.margin = job.quoted_revenue - job.actual_cost
+            job.margin_pct = (
+                (job.margin / job.quoted_revenue * 100.0)
+                if job.quoted_revenue else 0.0
+            )
+
+    # ------------------------------------------------------------------
+    # current_location — operator-readable status string. Stub here;
+    # full "Queued: Bath 3" / "In progress: Oven A" rendering needs
+    # fp.job.step + fp.work.centre, which lands in Tasks 1.5/1.6.
+    # ------------------------------------------------------------------
+    current_location = fields.Char(
+        compute='_compute_current_location',
+        help='Human-readable: "Queued: Bath 3" / "In progress: Oven A" / "Ready to ship".',
+    )
+
+    def _compute_current_location(self):
+        for job in self:
+            if job.state == 'draft':
+                job.current_location = 'Not started'
+            elif job.state == 'cancelled':
+                job.current_location = 'Cancelled'
+            elif job.state == 'done':
+                job.current_location = 'Done'
+            else:
+                job.current_location = job.state.replace('_', ' ').title()
+
     @api.model_create_multi
     def create(self, vals_list):
         for vals in vals_list:
diff --git a/fusion_plating/fusion_plating/tests/test_fp_job_state_machine.py b/fusion_plating/fusion_plating/tests/test_fp_job_state_machine.py
index 47a9429e..4c06d7b2 100644
--- a/fusion_plating/fusion_plating/tests/test_fp_job_state_machine.py
+++ b/fusion_plating/fusion_plating/tests/test_fp_job_state_machine.py
@@ -62,3 +62,27 @@ class TestFpJobStateMachine(TransactionCase):
         job.action_cancel()
         with self.assertRaises(UserError):
             job.action_cancel()
+
+    def test_current_location_for_draft(self):
+        job = self._make_job()
+        self.assertEqual(job.current_location, 'Not started')
+
+    def test_current_location_for_done(self):
+        job = self._make_job()
+        # Force state to 'done' (no public action yet)
+        job.state = 'done'
+        # Recompute — Odoo's compute is auto on read
+        self.assertEqual(job.current_location, 'Done')
+
+    def test_margin_zero_when_no_revenue(self):
+        job = self._make_job()
+        self.assertEqual(job.actual_cost, 0.0)
+        self.assertEqual(job.margin, 0.0)
+        self.assertEqual(job.margin_pct, 0.0)
+
+    def test_margin_with_revenue(self):
+        job = self._make_job(quoted_revenue=1000.0)
+        self.assertEqual(job.quoted_revenue, 1000.0)
+        self.assertEqual(job.actual_cost, 0.0)
+        self.assertEqual(job.margin, 1000.0)
+        self.assertEqual(job.margin_pct, 100.0)