calipers on the front wheels / axle will not work do to too small of disc. You will just make smoke. Better to add a disc brake to the input shaft of the trans or 1 additional caliper for each existing rotor.Other wise just set it up like the later bigfoots with the handle bars and cable brake.
LMAO !I am SO POUD
As you said, maybe he can gear it low enough to comensate.
Oh I see your going to retain the clutch set up , boy your going to have a lot of things going on . hand throttle, hand clutch, foot shift ?so you may have a clutch issue for this is much heaver than a Quad especially when in deep mud trying to catch that correct gear. but maybe it will be geared low enough to handle it. if it were mine I would try and have the torque converter also that way you won't stall it creating more problems.
I think your biggest problem will be somehow hooking the engine to the torque convertor and have enough room to fit everything together.
I looked into it but after laying it out I Knew it was Not going to work for my set up. I also have worked OR Looked at machines other people have tried this and turned into a Cobed up mess !But Hay if you want to do it Go for it ! I am not saying it Can't be done but ya never know till you try !