Lol, i'd be after it but after the weekends analysis of various track cars it needs to be 4WD, do you want rid of the shell as i might try and convert it to 4WD, would have to see what's involved. I know you have to cut out bits for the driveshafts at the front, and the mounts/cradle for the box will need to be modded, not sure about what else though.
True, but he's giving the shell away... so might as well take it off him since its free, can always weigh it in if you get pissed off with looking at it.

Cheers,
Grant