I actually have a Porter Cable gun I bought at an auction cheap that I plan on using. Gotta get a decent dessicant dryer for the compressor. A decent one up here is like $100, stupid prices.
When we were brushing on the Eastwood, I regretted not getting the reducer, that stuff is thick.
You can get an air sprayer from harbor freight or many other places for relatively little money. I sprayed mine on. Now, any time I do an engine I use Eastwood and spray it on. Much nicer.