I'll have to find out, it's actually my old tub that was traded as part of a deal for a tub I could use (body mounts were almost gone). I'm not sure but I thought he was planning to part it out in repair patches, will be in touch.
I had rust there. Just grind all the rust off and clean all the paint around it with a brush wire wheel on a grinder. Be sure to remove all rust or else it'll come back. Shoot a bit of primer or rust converter on all bare metal. Apply a little bit of bondo to fill the holes, then once its all dry fill the patched holes with more body filler, sand with 100 grit paper till its almost level, then go down gradually 'till you're at 220 and it's all baby skin smooth. I bet if it's rusty there it's even worse elsewhere, so either fix it all and repaint everything or just get a spraycan matching your color if it's factory.
Good luck buddy, get your hands dirty, it's a Jeep, not a pavement queen!