Electric Bus Assembly Line CAD

I want to commission a complete set of CAD drawings and 3-D models that will let me build an end-to-end assembly line for electric buses. The scope covers every station from structural body and chassis assembly through battery and electrical-system installation, with smooth hand-off to later paint, trim, and final-test areas that we will add in a second phase.

The line must be ready for CAM-driven fabrication, so I need files that can feed directly into CNC, laser-cutting, and robotic welding cells. Layouts should reflect realistic takt times, ergonomic operator access, safety zones, AGV or conveyor material flow, and future scalability.

Please include a detailed project proposal explaining the steps you will take, the throughput assumptions you will base the design on, and which tools you will use (e.g., SolidWorks, CATIA, Siemens NX, AutoCAD, or other professional platforms). I will use your proposal to select the freelancer, so be specific about milestones, file formats you can deliver (STEP, IGES, DWG, DXF, native formats), and how you will handle revision cycles.

Deliverables
• Plant layout drawings with material flow paths
• Station-level 3-D CAD models, jigs, fixtures, and safety equipment
• CAM-ready manufacturing files for fabricated parts
• Bill of materials linked to the models
• A brief installation and commissioning guide

Acceptance criteria: models open without errors in the stated software, dimensions match agreed specifications, and the flow simulation meets target takt time and safety clearances.