Thanks ferfre and pete...
Well, I got the rear mocked up and hand tightened. The wheels fit nicely and look cool. I've got a bout 1/2" on each side from the fender hitting the side wall. I'm sure I could get more by slightly opening the bottom of the body since it's not permanently mounted just yet.
Today when I get home from work I'm going to roll the chassis out and get some pictures. Then clean up the garage and organize my engine parts and tools so I can start build the motor. Finally.