If you search here on the forum there are some posts. Also, there is a Metris Forum (link below) with more info. Right now there are several options:
- GTRV (Dozen or so build thus far using Reimo interior)
- Reimo Americas (in Prototype)
- Recon Campers (Waiting on MB official camper upfitter model end of 2016/Q1-17)
- Sportsmobile (Just announced they will start building on the Metris Chassis)
Mercedes-Benz Metris General Discussion - Mercedes-Benz Metris Forum