So, what can I shoehorn into a Fiat 124?

I used to have a Fiat 124 Spyder and it kicked *** with the original Hemi design DOHC motor. (Too bad the engine is gone)
Anyway I always daydreamed about turning into a Cobra style car with wider fenders, roll bar and side pipes with a Ford 2.9 EFI V6 and a 5 speed.

Or maybe a rotary.