Sheet Metal Brake and other forming tools for body work

For body work, the first thing I'd get is a good hammer and dolly set. Quality pays off here, don't buy cheap junk. Martin, Covell and others have nice stuff that'll last a lifetime.
I have the small shrinker/stretcher setup from Eastwood. It works quite well as long as you don't need to go deeper in than about an inch. One thing I would do different next time, is to get the stand and foot operated setup. Mine are vise mounted and sometimes you need an extra set of hands to hold the work, instead of having to press on the handle. If you work alone, consider the foot operated ones.
Using an English wheel looks easy, but it isn't. It takes a lot of practice to make things shaped the way you want them. I compare learning wheeling techniques to learning to TIG weld well. It's all about practice.