Got all of the parts at hand now. I think my first plan is to assemble it and get the belts setup correclty, and check for any drivetrain drag. Than I can make the motor mount and install everything.
I am still debating if I should go with the clutch or not. I have a feeling I will give the clutch a try, if only to help the motor overcome the high gearing.
Going to try the 5700 on 2s first. Simplest wiring, and I have it all handy.