Getting the frame C-Notched next week and want to throw in a helper bag setup in the rear while the bed is off. What do you guys recommend? I really don't want to spend more than $300. Can have a compressor/tank but doesn't need to. I can always fill the bags at home when I know I am going to tow a car that day. I figure that 35-50 PSI will be enough to keep the rear end from squatting- that's all I really want. 1 car hauler at most. Thanks for your recommendations.