Joe, if your gonna go balls out on making plugs. I wouldn't buy anything else but top of the line stuff. This is what i use to have until some low-lifes burglarized my house 4-6months ago.
Badger MILLION-AIR MODEL 480-1
Additional Specifications:
Max Pressure: in excess of 100 PSI
Motor: 115 Volts / 60Hz AC 1.72 amps
Dimensions: 17 ¼” L X 8 ½” W 13 ½” H X (44.5cm X 21cm X 34cm)
Shipping Weight: 37 lbs (16.8 kg).
The 480-1 is powered by a 1/5 HP motor and has a .45 gallon (1.70ltr.) tank which develops 19.8L/min .70 CFM at 126 PSI (8 bar). Will operate up to two air brushes.