My First Resto-Mod (Guidance Appreciated)

First off, to blast a whole car, hope you've got a BIG compressor or don't mind waiting around a lot.

You can blast without warping if you are careful. Keep moving and keep some angle.

SPI black epoxy is the only primer I know of that actually has UV inhibitors. Not as good as regular top coat but much better than most flat blacks without UV protection. Not too spendy.

Don't let the bare metal sit long after blasting. If it has to sit more than a few days, put a protectant on it. SPI sells one. Washes off with soap and water.