3D CAD Modeler - WW2 Military Vehicles for 3D Printing (Trial Project with Potential for Ongoing Work)

Need a skilled 3D CAD modeler to create historically accurate WW2-era military vehicles optimized for FDM 3D printing.
This is a trial project. If the quality meets requirements, there will be many more vehicles to model, potentially leading to ongoing regular work.
Requirements:

100% original work (no game rips, no downloaded models)
Must provide source CAD files (.step, .sldprt, .f3d, etc.) proving you created it
Print-ready geometry: manifold mesh, no errors, optimized for 0.4mm FDM nozzle (0.2mm nozzle for scales below 1:56)
Historically accurate details (hatches, guns, tracks, equipment, etc.)
Scalable from 1/100 to 1/30 scale
Single-piece design

Deliverables:

Source CAD files (editable format)
Clean STL ready for printing
Work-in-progress screenshots
Signed IP transfer agreement with your legal name (standard for commercial work, kept confidential)

Budget: ?7,500-10,000 PHP ($ ---------- USD) for this trial project
Timeline: 5-7 days
To Apply:

Show 2-3 examples of original vehicle/mechanical models you've created
Confirm you can provide source CAD files
State which CAD software you use
Acknowledge IP transfer requirements

If this goes well, expect regular work with multiple vehicle commissions.