Maybe you can find a private guy who will let you help. I found a local guy to paint my engine bay. He let me come out to his shop and do all the sanding and prep work. He did a little rust repair and final masking. It was great because I saved some money and I learned some valuable things about body work. Now I can go out and watch/help him work when I want. He charged me $30 per hour which is pretty cheap for a good body guy.