Boring, but necessary, the plumbing and wiring is being installed. I'm mainly only posting about it to have a place for the photos in case we need to look at how things were installed in the event of future repairs.
Kind of hard to tell what the photo below is depicting. Mark decided to run a channel in the subfloor to allow the plumbing lines to cross the van at the floor, rather than up the walls, over the ceiling, and then down the walls to the sink.
Final shot shows the bypass doors on the face of the couch/bed framing. The framing holds the fresh water tank, electrical box and furnace. It all has to fit in somewhere...