I'm wanting to get into the etching off glass. I'm wanting to get the air eraser from HF. What kind of compressor should I be seeking? Found a 3 gallon 125PSI? Or a 15 gallon 100 PSI? Looking to get started on this, but don't want to break the bank if I'm not going to keep doing it. Any help is this area would be fantastic and I would greatly appreciate it.