Hi Dave,
This is Bogdan from Romania.
I'm a mechanical engineer - specialized in the industrial robotic field, 3D designer and modeler (from time to time and some projects I could make the functional prototype too).
I'm doing product design, industrial design, reverse engineering, ideation, etc.
I have over 15 years experience working on various systems/devices across multiple industries, from concept to launch.
1 - upon connecting here, you'll be able to upload pics, drawings, sketches, etc, but from your description results there are still needed some parts (spacers, brackets, fittings, etc...
2 - i will create your model and provide step (and also other cad formats) and dxf, dwg and pdf files for each part and whole assembly ready for manufacturing
3 - we could discuss about sourcing the manufacturer of mass production...
Regards
Bogdan