Small Camper for 1 and a bike

[Dibble]

OP, for ideas for the inside, have a look at the Foresty Forest YouTube channel. One man, one bike. He started off in a minivan, but he has something bigger now and 4WD. Canada based, so not exactly a like for like, but he may give you some ideas.

https://youtube.com/user/forestyforest

Tom Heaton is another YouTuber. He’s recently converted a Mitsubishi Delica, which looks to be about the same size as yours. Again, single occupant.

https://youtube.com/c/ThomasHeatonPhoto