Well, I called and spoke to LT. He got a good laugh when I told him "Delancy Sent Me".
He said he doesn't have plans to make tube bumpers for the 80 at this point, as he's not sure there is enough interest from 80's owners to justify the R&D costs. He said he normally points people to the 4x4 Labs bumper, since most 80's owners seem to prefer plate bumpers (especially for rear bumpers).
If you wanted to see what MT rear bumper concept would look like, you could look at the FJC rear bumpers on his site, as that is likely the basic design he would go with.
He did note that if he had enough interest, he might start making them, but I don't know if three or four bumper confirmed orders would qualify as "enough interest".
For now, no rear bumper from MT is included in this group buy.
Id be all over a rear MT bumper. Give it a swing out and hitch that can tow/retain the stock hitch and Im there.
Simple protection and probably lighter than the other options.
Decent rear protection at a price similar to how their front is priced I would think would have a lot of interest.