6 door Ford F-250 work truck
(EDIT: Answer is here.)
I saw this at work:

6 door work truck
That’s a 6 door Ford F-250! It’s otherwise a plain jane work truck.
It has to be modified, but I couldn’t find any coachbuilder marques. The closest was the dealer:

6 door work truck's dealer, England Ford in Hinton, OK
Who makes this? What is it?
who makes these 6 door truck im thinking i might be interested email me nwvet@cox.net
Common man… you cant be that naive to think that someone could possible modify that and it look stock like that. Ford makes it. I see them all over the place in Charlotte. they are just big ass 6 door work trucks. they make them for large crew transportation. if you look at it close enough you will see that its completely stock. limos, coaches and other stupid unnecessary vehicles like that will show OBVIOUS signs of modifications. Uneven areas on the body panels, silly looking weld marks that on any other car would be deemed unsafe for transportation by the insurance companies.
If they are made by Ford, then were is the sales literature?