Convert 3D Files to STEP Format

I need a skilled freelancer to convert my existing 3D files, which are in OBJ, Cinema, and FBX formats, into a STEP file. The conversion should maintain the separation of bodies as already shown in the OBJ file. The original files were created using 3ds Max, and no specific adjustments to the geometry are required before conversion. Default naming conventions for the different bodies in the STEP file are acceptable.

Key Requirements:
- Convert OBJ, Cinema, and FBX files to a STEP file
- Maintain separation of bodies as in the OBJ file
- Use default naming conventions for bodies

Ideal Skills and Experience:
- Proficiency in 3D modeling and file conversion
- Experience with 3ds Max and related software
- Familiarity with OBJ, Cinema, FBX, and STEP file formats
- Attention to detail to ensure accurate conversion

If you have the expertise to handle this conversion efficiently, I look forward to your bid.