There's one built in 'Bama and a guy in Corpus is the dealer. At least he was a couple of years ago at the Texas Trophy Hunter's show in San Antonio. It was a lot more reasonable price-wise.
The guys in southern Africa use these type of trailers all the time and I guarantee you they can't spend that kind of green on one. But here in the states, folks want a fortune for this kind of stuff. If Mexico wasn't so messed up, I'd say a man could do well having a business arrangement with some welders down there building these kind of trailers.
...and have dominion over the fish of the sea, and over the fowl of the air, and over every living thing that moveth upon the earth. Gen. 1:28