Here's where my brain is:
4 front hubs should work if I'm using the freewheel diff system because the freewheels are on the axles; not on the wheels themselves, right? The cassette/multi gear freewheel (all this damn terminology is confusing) powers the axles it's connected to, which rotates the freewheels on the axles with the wheels. I just need a way to connect the rear hubs to the axles using the existing StreetFighter rear end and keeping the rear brakes on the inner side of the wheels like a car. This way I have the brake rotor flange on the hub directly.
I'm trying to make this thing fun without overcomplicating it. Attempting to change course from my idea or leaving it as is will bore the crap out of myself and will just leave me angered and that's something I don't want/need to happen. At least with my modifications, I can enjoy it during the summer and come the colder months, I'll be more motivated to learn the skill of welding. Then I can get a laptop and learn CAD so I can make my own parts from scratch and focus on making StreetFighter MK2 a better machine than MK1.
I also have a velo mobile idea, but again, I need this first StreetFighter for the motivation. Smiles and dorifto equals motivation.
Motivation means something very creative, dope and right up my alley. I've had a few ideas circulate in my mind that I would like to implement.