Well we've been busy but I've been slacking on posting our progress. We (mostly Bill if I'm being honest) have finished the cabinets but still need to make all the doors. We've (again, mostly Bill) also installed all the wiring but I only have post install pics of that. The decision was made to use stained plywood with natural finish solids on the interior and galley.
Here is the inside cabinet that is above your feet when you're sleeping. You can see the shore line hanging down still at this point.

Here is the LED lights that will be installed just behind the vent/fan as well as the hole for said fan.

Here's a second pic now showing the panel that covers all the electrical connections. This panel also supports a 110v AC outlet (protected by an upstream mounted GFCI) and a 12v DC USB port.

Sorry that this one is a little blurry. You can just make out the wire coming through the plywood above the headboard cabinet. This wire will power a 12v dome light with LED swivel reading lights.

And at the rear we have a rollout tray for an oversized "I have human body parts in here" Coleman cooler next to a cabinet which houses the battery and trickle charger. Bill had the idea to wire the trailer as three separate electrical systems: 1) The basic trailer lights (brakes, blinkers, running lights). 2) 12v DC connected to a deep cycle marine battery. 3) Shore line with three outlets: inside, galley, battery tender. You may be able to make out that 3rd outlet and the tender in the 2nd pic below.


The galley counter back splash hosts a 12v DC outlet, a 12v USB dual port outlet, and a battery monitor in the three round holes. The 110v AC GFCI outlet is on the far right. A battery shutoff goes to the left of the 12v stuff.
Not pictured, there will be LED porch lights installed above each side door and (when we finally build it) there will be a strip of LEDs on the inside of the hatch to light the galley area.
That's our current status. We're having fun figuring out each step. There are so many ways those who have gone before us have used so sometimes it's hard to know what the "right" way might be. Time will tell though. Until next time, thanks for following along!