My digital camera is off with the S.O., so there's no pic rapidly forthcoming. However, here's a URL where you can see another one...
Transporter
As you can see, all the machinery is going to have to be in the cab, and just the driveshaft and gears to the wheels will be in the rear. On the plus side, there's plenty of room in the cab to work with.
I'm thinking of mounting the motor "sideways" and running a geared-down shaft back to the rear wheels.