Steve
If money isn`t MUCH of a problem.I have what is called a power tank.It fills tires with CO2.One tank full will fill 39 class A tires.The psi goes up to 200.It fills in a matter of seconds.i use it to fill the tires on my Montana,my truck,it runs air tools.Very very powerful.The web site is
www.powertank.com
You refill the tank at any welding supply shop for around 11 bucks.