[GreenMystChevy]

You could try doing it in stages, or panels. You could sand down the body panels that are relatively straight and need little "special" attention and then have a buddy, or a shop if a buddy can't be found, do some smoothing and welding work on the panels that need more attention.
Then do as much as you can to the rest of it. It might be worth the time and money to look for someone who paints and then rent out a paint booth and pay them a few bucks to spray it for ya.

I think I am going to try some of these ideas that I just threw out there because I am a little short on cash too, who isn't. Good luck.