I would have said Powder Coat the frame when your finished , but I learned a costly lesson. Paint the from, if you plan to make any changes down the road and have to weld a bracket on the frame you'll have to grind the powder coating off, and then use paint to touch it up. I have to say it doesn't look pretty.
Sand blast the body's underside and use some POR15 to paint it. What the hell! use it on the frame too. You can touch it up if you change something. Hmmm, I'll have to write that down for myself.
Anyway now that I confused you and myself I'm going to work on my rig.
Keeps us informed as to your progress.
80' CJ7, 360 Howell Injected, 3" single exhaust, NP435 4spd, Dana 300 AA clocking ring, Currie twin stick, Tera-Low 4 -1 kit, Dana 44 front, cut 10" wider to 63", 4.10 gears, ARB, Yukon axles and Super H/D u-joints, Currie Dana 44 rear, cut wider to 60 1/2", 4.10 gears, ARB 35 spline, Currie 35 spline axle shafts, 2 1/2" x 11" Ford drum brakes, CJ-SOA conversion, Tom Woods F & R drive shafts, Warn 9500i winch, 6 point cage, Homemade F&R bumpers and tire carrier, 1" body, Pro Comp supension Kit, 12.5x35x15 BFG's, 15x10 OMF beadlocks, Body armor, OBA.