FYI... Found a nice 12vdc air compressor at Costco

It's like this one: http://www.homedepot.com/p/Goodyear-12-Volt-Inflator-i6000/204814139?N=5yc1vZc285 Goodyear i6000C. It's rated 130 psi and 50% duty cycle - 10 min on/10 mins off. It runs slower ...