I decided to mounth the tanks underneather the bed in between the outside of the frame and fender well, right in front of the passenger rear tire...
I used 1/2" heater hose from napa that goes straight from the compressor, to my check valve with unloader, then into the tank. A lot of people say to use steel braided line or copper tubing since rubber hose will melt, but the hose has handled it so far.
Originally I had a 145psi pressure switch I was gonna use, but do to a wiring malfunction, I fried it a long with my toggle
Another change I made was the warn solenoid I planned on using. The Warn solenoids are setup to use 2 solenoids for power, so instead I went to autozone and got a standard ford solenoid. Now I run a 120psi pressure switch with it.
My outputs on the tanks are 3/8", so I went and ebay and bought a "3/8 12v solenoid" for $30 and mounted it to one output and ran an air line to the exact opposite side, which is where my horn was mounted.
So far everything works great. I hit 120 psi from Zero in MAYBE a minute, probably more like 50sec.