I've used the BEOD for camping a few times. A twin mattress fits inside easily after removing a couple pieces of metal near the front (were there to protect the robot operator seating area and not really needed if you don't have the extra seat installed back there (which can't be used for passengers anyway))
just over 8 feet tall, and empty the truck is probably around 8500 lbs with it installed (mine is never empty, so probably around 9500 lbs with all the crap I pack in)
Ventilation isn't the best, and no insulation, so condensation does build up on the ceiling, but other than that it worked fine. About 2 hours to install or remove it using a couple trees and a hoist.
A lot stronger than most civilian campers also. I've knocked branches and small trees out of the way with it more than once.
View attachment 888474
View attachment 888473
(edit: the color difference is due to ambient lighting. The paint is the same in both pictures, just a year or so apart.