Brown -- yeah, I don't think you'd have enough room for the 2-1/2 gallon tank under your CJ5. I barely had room under my CJ7. I think you'd have to mount it in the passenger compartment somehow. Maybe above one of the rear fenderwells?

I'll try to take some pictures. My digital camera took a dump, so I'll have to wait until one of my buddies brings theirs over.

1977 CJ-7, fiberglass body, AMC 360 w/ headers, DUI ignition, Edelbrock intake and Holley 4150 carb, TF999, Dana 300, 4.56 gears lockers, York air comp, 4" susp lift, 2" body lift, BFG 35" M-T tires, Megashifter, AGR pump & box, REP8000 winch.