Dude this is really a HUGE JOB. Keep reading, reading, ask questions, ask questions, read some more, maybe get a book on off road suspension. Dont forget the extra tools, dollies, engine hoist (I've heard those Rockwell are around 700lbs each), shop press, plasma cutter would be nice, drill press would be nice, good bandsaw would be nice, and countless other things that you will discover during the process. People like the Rockwells because they're a lot cheaper than the D60's and I would imagine you wouldn't have to worry about anything breaking. Don't forget about being nickel and dimed to death.... New bearings in axles, lockers, brake overhaul, brake lines, various brackets, nuts and bolts, seals, Making Heim joints, welding rods, a beefy steering system, zillions of trips to the parts store and waiting for ordered parts, ect, ect.... A buddy of buddy got to go the the Top Truck Challenge, he ran an old CJ with rockwells. I'll hit him up and see if he has anything lying around you might could use/advice..