Guys-
I got more info this morning from Jay Margolies, President Willys-Overland. As I've stated before, there are only 2 tub importers in the US. Jay confirmed this again and tells me that Omix is the other one besides him. The Omix tubs are the identical tubs that everybody else is selling. He went into greater detail about the types of items they correct, but that would take too long to write here.
They haven't fully assesed the issues that would need to be fixed on the CJ-8 tubs yet, but if you would like more information on the processes that some of the tubs go through, call them at 888-265-JEEP. Jay frequently answers the phone himself. If he's not availabel, Dennis Branum, General Manager, can also provide technical details about what they do. Jay in formed me that a W-O corrected CJ tub takes about an hour

to install onto a frame (not including paint, prep, etc).
Examples of goofiness they have seen are CJ-5's that have been "TJ'd" with fuel filler holes on the side and CJ-5's with underbody supports so far off that you can't set them on the frame. You can't re-drill new holes either, because there's nothing at the correct location to drill into. Apparently CJ-7's don't come with any firewall holes, the master cylinder holes are punched so poorly that they don't match the master cylinders, and no CJ-7's come with grille support rod mounting brackets.
Just a few more things to consider and ask the other vendors. They didn't comment on the JP aluminum bodies other than there's a LOT of work required to install one of those and then you have to deal with grounding everything properly - which are obvious items if you've visited the JP site.