I'm looking at powder coating smaller parts. An electric powder coating spray gun can be had on ebay for 50 bucks. The powder is cheap and the great part is no primer is needed. You need to bake the parts at around 400 or 450 for 20 minutes so either small stuff that will fit in a cheap used oven or build a larger oven which can be done very cheaply.

Anything that won't fit, blast, epoxy prime and single stage. yes it's a pain but like you know the rattle can stuff if junk.