Years ago my local wheeling group experienced the "I'm building the biggest and baddest 4x4 in the club.
They all figured out after the builds were done, now they had something they were only going to be able to use a few times a year and have to tow it 8-10 hours away to find challenging obstacles.
All of the rigs got sold or cut up and parted out.
One of the rigs got sold intact to another member. He's now into Razor atvs and the rig has been sitting for about 10 years unused. He says he wants to sell it.
It's an early 90s jeep wrangler on unimogs with rear steer. Ford 302, bronco c-4 with and atlas t-case. Propane for fuel with maybee 4 tanks, air suspension 4-link on 42's. Bunch off stuff I don't recall.
I helped the original owner build the truck and I'd guess he spent at least 50k on it.
The only thing that's wrong with it that I recall was the aftermarket shifter got jammed up and wouldn't shift. I disconnected the cable and I could shift the tranny throughout the shift range(reverse manual valve body)
I guess it could be had for 12k-15K. I can look into it if you're interested in it.