[JesseK]

First, amazing render. I don't think anyone here will ever get tired of these types of ideas, so don't feel the need to 'quit'. They're creative and are a spring board for a final product.

Any way the encoder can be re-incorporated into the gearbox?

It also appears that the inner races of the bearings on the last stage touch the inner races of the bearings in the housing. Would this cause a problem due to the difference in speed of each shifting gear?