I've been through many for my garage and finally went with the IR T-30...
2-stage
240v
5 HP
14.7 CFM @ 175 PSI (it cuts off at 175)
Then I piped the garage from it to give me outlets in various places and made sure I used a good
oil / water separator setup with a regulator just after the compressor outlet. Make sure you mount it on rubber pads and bolt it to the floor well and use a flex hose connector as shown in the pic.
It is more than adequate. But is wasn't $800 either. Probably my last compressor.
