I would try to get it for closer to $200, I would much rather have it then a newer one with the same CFM specs. I say this because I would be willing to bet that compressor is very quiet. Go take a look at it and hear it run, also speedaire is Granger rebrand of CH and Champion compressors so parts should always be easy to locate, just figure out who really manufactured the pump. I do agree that it looks like a Champion 3Z170 pump.