At first I though this was sales pitch spam since that site is an online store. But then I looked a little more, and there is a pretty good set of forums on there at www.autobody101.com/forums with lots of compressor and spray-painting discussion. Thanks for the tip!
You can bend it in a conduit bender. If you don't anneal it, you will get some dents/kinks. If you do anneal it first, it will be very easy. You don't need sand.
Annealing it is simple. For anyone who doesn't know, all you have to do for copper is heat it red hot. That's it. Unlike steel...