Air tank mounting ?

[1moretoy]

Does anyone know if the porter built compressor/tank brackets will fit behind the rear wheel on the frame of a short fleet. I plan on running 20" rims so I'm not sure if there would be a clearance issue. Trying to get an idea what will fit where before I buy. Seems some are mounting 5 gallon tanks to the frame under the cab. If I did that the tank would hang below the frame. I think it would look funny to see a tank hanging from a side view. Any pictures would be greatly appreciated.

Thank you.