Actually this is a contractor box, Fibrobec Diablo. You can have those shells used for around $2-3kPointless dumb windows in the tiny cabover coffin bedspace.
I bet they want $75k for just the tiny camper?
Spacekap : Commercial Diablo truck cap and service body
The Spacekap Diablo is the largest mobile workstation for professionals and contractors, to safely store and access all tools and equipment
fibrobec.com
I always wondered if they could be made to work as a camper.