Cinematic 3D steam train scene with editable Blender parts

GOAL: Create one detailed 3D steam train inspired by the atmosphere of Clair Obscur: Expedition 33. MOTION: Build a weathered black locomotive with a long cylindrical boiler, flared chimney, open cab and large spoked driving wheels. Include connecting rods, pistons, exposed pipes, valves, rivets, ladders, handrails, buffers and a warm headlamp. Attach a coal tender and two period passenger carriages. Give the carriages curved roofs, framed windows, visible wheel assemblies, undercarriage details and softly glowing interiors. Connect every vehicle with believable couplings and consistent proportions. Use aged iron, worn steel, subtle rust, soot and traces of snow on upward-facing surfaces. Keep the materials realistic, with restrained reflections and visible wear around joints and edges. Prioritise an elegant silhouette, convincing mechanical construction and fine surface detail. All components should feel heavy, functional and properly connected. Deliver the complete train as one editable Blender scene, with logically named parts and packed textures. Model only the locomotive, tender and two carriages. No surrounding environment, text or logos. Keep metered API spending below $5 and report the actual cost.