Hi there,
This is Bogdan from Romania.
I'm a mechanical engineer, designer, modeler and inventor with over 15y experience in designing, modeling and effective manufacturing of different products, devices and systems which spans across multiple industries.
I could make your model with respect for all dimensions and gear constrains, and also I'll work with you if necessary to adjust/change/modify any of these components.
Based on your drawings/sketches I'll make in the first place a primal model. On this model you may ask for modifications/changes/adjustments and we'll work until the desired outcome is reached.
When the model of the assembly and its components are finished and aproved, I'll deliver you the CAD files in different formats (iges, step, sat, stl), 3D pdf and detailed/execution drawings.
I could give you more details if you'll open a msg channel here and we talk about what you need/want.
It is also possible that during our working/development process to come up with new ideas which to help you in achieving new parameters.