Ive got the one that now costs about $70 from super cheap, its hooked up to a small air compressor via some jiggery and then attached to the second battery power outlet...
runs like a normal air compressor and while its only good for bursts from the tank Its inflated dozens of tyres, and with a full load in the tank runs the rattle gun enough to do a tyre change.
my total cost was $99 for the little 1hp compressor from kmart and about $160 for the compressor from super cheap (this was bout 3 years ago now)
as a bonus If i can pull up where there is 240v power I can run the little 1hp compressor. My only annoyance is that the little 600w genset Ive got hasnt quite got enough go to run the 240v compressor properly.
