Hi there,
This is Bogdan from Romania.
I'm a mechanical engineer, specialized in the industrial robotics, 3D modeler and designer.
I have over 15 years work experience, designing, prototyping and launching different devices/systems across multiple industries.
I could help with your project.
I can make your models, and provide any usual cad format (including obj with or without color attributes, and also with material properties.
For any other questions, you may open a chat room here and we'll discuss about the details.
Regards
Bogdan