The frame could use reinforcement from the rear all the way to the front of the rear wheel "bump" for lack of knowledge a more correct term. Also the front driver's side spring hanger needs replacing (I have the part), which got damaged in a hit and run.
I don't need it to be perfect, but you're right about liability. Right now, no shop will touch the rig at all because of liability, due to the frame. I'd like to get the frame to a point where I can take it to a shop and not get a phone call a couple hours later "Hey yeah so about that work on the landcruiser, not gonna be able to touch this thing with the frame the way it is". I don't really have space to work on it at home, at least not when it's crappy outside, and definitely no major work at all, so being able to take it to a mechanic is a necessity.
It is indeed rusty elsewhere, though better than many others I've seen. The inside of the front door jambs on the A-pillar is starting to rust, rear wheel wells are rusting, the fenders have holes at the bottom and the body around the rear-most body-mounts is rusty, too. The driveline components are fine though, axles are in great shape, with freshly rebuilt knuckles. It's not like it's going to fall to pieces tomorrow, but it's not the LandCruiser that I will keep forever, either. It runs fine, too, and I dinked around the neighborhood in the snow last week and it did fine, but for me to drive it any further than around the 'hood, it needs other work that I can't address until the frame is taken care of.
End of the day, I just want to drive it, instead of watch it sit, and that's not going to happen until I can get the frame taken care of. If I get a couple years out of it while I work on my other project, I'd be perfectly happy.