A fantastic project Peter. Amazing CAD work and rendering. How can we help? If you can provide two or three pain points that you need help with, that would be great way to help direct assistance. 

Looking forward to seeing your project hit the prototype stages.

Thank you!

My biggest challenge to building a physical working prototype is the electronics aspect of the design. Although I have left some physical space for electronics to be implemented in the CAD model, I'm not sure where I would start with the PCB design and the logistics of power supplies and motors.

Secondly, creating the body of the prototype model would be done via 3D printing but would have to be at a smaller scale due to the large filament cost. This has limitations as a scaled down model won't provide a full idea of the accessibility and user experience compared to printing a full size model. Ideally, breaking the model down into pieces and having access to a large 3D printer with supply of filament would allow for a full size model to be created.