If you've got a Tractor Supply nearby, try looking at the 80 gal Ingersol Rand. It peaks at 135psi, but puts out 18.1 CFM at 90, which will run most anything. It's rated for a 24 hour duty cycle (more than all of us) and comes home for $699. They do 10% discounts for getting their credit card from time to time, getting you down to $630. Pretty hard to beat. It's also a fairly quiet unit.