I've tried to contact the TJ owner for a try-out, without success.

Rhino lining isn't an option. The only thing that Rhino lining would protect is the tub, and mine doesn't need protection from water, since it's fiberglass. Also, the storage boxes are metal and would eventually rust, and I carry other things back there that aren't sealed up.

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.