This guy has a Bedford Rascal, (Suzuki Super Carry, the non JDM version with bigger engine), Camper he’s working on.
Top Gear had a feature on an offroad inspired Bedford Rascal with a weird living space in the back. It's a Bedford Rascal on a Diahatsu Fourtrak.
What I found interesting is that I have come across videos in the past which were about the van versions, and are dedicated camper units: This is the first factory produced slide on version for a pickup I’ve seen. I’m in the sketching phase of designing one for my Hijet, I was trying to figure out how to get a full length double bed on mine, and this set up gave me some great new ideas. Also, Carry owners, this is another potential parts source for parts. The Rascals appear to have at least some interchangeability with the regular Carry, and you might be able to source. Parts from Britain for less than you can from Japan.