Thanks -I have plenty here.
The final product won't require a specific project box (it will be hidden under the seat -only the pot for the controller will be visible).
I just wanted to find two boxes, one with more RF shielding to see if I could improve the performance of the prototype.
UPDATE:
The 4hi option is done -that was the easy part.
Varying the duty cycle to vary the torque split is about 80% (the frequency drifts a little -needs refinement).
The display interface is designed, but not tested.