[MDPotter]

Primer - SPI Epoxy. Not recommended over lacquer or acrylic paint though.

Paint - have base mixed up at your local auto paint supply. SPI Universal clear.

Frame - If you're stripping to bare metal, SPI Epoxy. Over rust, Chassis Saver. Chassis Saver will stick to rust or bare steel, but it is nasty to work with whereas SPI Epoxy is much more pleasant to use. SPI Epoxy will have more of a semi-gloss whereas Chassis Saver is satin.

Engine bay, other stuff - Same as above.

Body Filler - I use Rage Gold. I use filler thinner if it's on a horizontal surface as it levels out and reduces pinholes. No thinner for vertical surfaces. The warmer it is, the faster filler kicks. I usually do a stripe across the filler pile when you're mixing. I use something finer and less viscous for feathering out when needed or filling pinholes - Seal Skin.