Saw this on local Craiglist. NOT MINE. Good price for a Chateau rear bench/bed. I could possibly go look at it for you if needed before you make a long drive to buy.
Text from ad [again it is NOT MINE]:
Really nice and comfortable/large bench seat. Folds out to a great bed. Free matching captain chair. I have the mounting hardware for the bench seat (cost me 100 bucks). From a Ford Chateau I think a 1996. I just went in a different direction.
It is 60 inches wide with the arm rest on, 56 inches with them removed.
It is 69 inches long.
This bed needs 2 feet of space from where it is mounted to the back of the van due to the way it opens.