This was a contribution from one of our visitors. Thanks, Gary!
He built his own mini camper. Here are the details that he sent me.
Custom Mini Camper
It was a 4 x 8 Harbor Freight trailer that was extended to 5 x 8.
The walls are 2 x 2 with Styrofoam insulation. The roof is flat rubber.
He added an RV door, windows, and a vent on the roof. Update: More pictures added!
Inside there are two bunks and a port-a-potty. It is a perfect simplified mini camper.
What do you think of Gary’s mini camper?