He's racing production class, so K20/K24 EG is a no-go unfortunately.

and RWD and FWD are just different drive types, it's not like one is better for track or road then the other, they both have strong and weak points. for example most RWD's turn in well compared to most FWD sports cars, but FWD exits the turn better in most cases. from my experience anyway.

OP, you could try posting a WTB ad here on the forums?