I've heard of people using the propel stuff in a can, a spare tire, and an air tank instead of a compressor. I've also heard that the air compressor should have an air tank on it. I have a badger 150 and a no air tank compressor that I've used only a couple of times. Recently I purchased a compressor with a 3 gallon tank and have it all set up on my paint booth. Christmas brought me a bunch of HOK paint. I have some nail polish laying around. I think all I need is warmer weather.
If anyone is interested in my old compressor, I'd be willing to trade it for 3 complete, unbuilt kits.