With all the siding in, I began the more fun part of building the furniture and functional elements.
I opted for a bed that folds into a couch. The bed fits an XL twin mattress. I got a foam one and sliced about 3/4 through the back of it to allow it to easily fold.
The bed frame is simple and ingenious, something I found by googling around. I used douglas fir 2x4s and 1x4s. Basically, the wood slats can slide over each other when you pull on the front of the bed (when there is no weight on the bed). They slide until they reach the bolts. Then enjoy the full twin bed glory.
Against the back wall I put a small desk. To the right of that is the kitchen counter, with shelves above. And at the far right is the li'l sink/shower tub combo. It's cramped, but it's intended for seated showering, with a wraparound shower curtain to keep all the moisture directed down into the tub, where it will go into a small greywater storage tank beneath the van.
Yes, the rear doors of the van are now completely covered. They won't be used. In some crazy emergency escape, I could probably easily pry loose the lath, grab the handle, and tear-ass outta there. But I figure that the sliding door is sufficient. For the sake of the interior feeling like a room, I don't want to have doors all over the place. It will also be quieter this way. The intended normal way to enter the van is through the bulkhead door.
I installed a latch on the bulkhead that requires a key to open from the cab.
Just in front of the sliding door is the composting toilet. I have a couple of very small vent fans exhausting underneath the van. The toilet seat has weatherstripping to keep it mostly airtight.
The idea for having the toilet here is that since it's a composting toilet, I will need to empty the bucket, and I don't want to carry it past the bed, say, or over the kitchen counter. Nice to have it near the exit. Also, I wanted a bit of additional buffer away from the sliding door, because I would sleep more soundly not having a sliding door right next to me. This way, the toilet is in its own room, separated from the main cabin area by a curtain. This affords privacy in the event of social gatherings, and again keeps the toilet reasonably out of sight of, say, the food prep area.