Things to change/lessons learned (and as a checklist for myself):
The trailer sits low enough that my grey water connection is below the height of a 5 gallon bucket and aquatainer jug; which was how I planned for to dump grey water. If I allow it to build up enough I can get a siphon flow between the two, but it's a little less user friendly than intended. I may look at the low profile Blue Barker portable tanks instead, but haven't decided.
http://www.amazon.com/Barker-Manufactur ... 40&sr=8-12We avg'd about 5 gallons a day washing dishes, without much conservation. I solved my 'burping' issue on the tank by putting a shutoff between the shower and main vent/drain stack, not positive why it worked but it did, and prevents any odors from coming back up.
Anyone use portables have thoughts?? Worth the money? I just carried a bucket each night/AM to the toilet this trip.
We need blinds across the beds to help separate the kids from other lights. I need to change our wood door step to a grate to eliminate some dirt coming in. Need a porch light and awning solution.
The benches/lower beds were slapped together the night before we left. I literally was nailing and glueing things the morning of in the rain. Here's a late night sample, you can see the ramp in 'patio' mode.


They're 1/2" face framing with a lid and then 4" foam, all the same size and are interchangeable, with eventual wheels, and are roughly 12x24x36 (adjusted to fit the space, and 18 tall including wheels/foam). They can be configured as a rough equivalent of a single (2 long) bed, a twin (3 wide), full (2x2) or an off size between a king and queen as seen in the picks (2x3). They provide a ton of storage, but we need subdivides to organize them better. The center table supports are not worth the money on initial opinion, we'll see if that changes with time. They were a easy button solution since I ran out of time for a better diy one. Hindsight I think the heavy duty plastic tubs are about the same height and could have worked, saving a lot of weight, but wouldn't be as finished or nice of a fit. Currently I need to add webbing handles to the sides and lids to ease access, as well as a center support.
ARB fridge worked well, we had it on the edge of freezing which kept ice and beer as it should, while only unintentionally freezing a few veggies. I need new quality slides, the Home Depot specials had issues when it was fully weighted. Wife didn't like opening the cabinets to slide it out. Might move it, take off the doors, or make them 'faux' doors attached to the slide. Under sink slides worked well for trash

The Dickinson heater came in, but to late to mount. We would have used it to heat without 120 to run the mini split and boondocked on the travel legs there and back. I think it'll go just right of the door, low, vented either through the roof or side.
Hooks come in handy, I had 3 sets in, used all of them and needed more. Collapsible bar saw a lot of use, but I need a stool/bench up front when the beds/kids are in use at the rear. Any ideas that don't take up space? I'm thinking double tri-pod with leather hammock seat.
All counter space got used, we had 3 adults and 4 kids at one point inside while prepping dinner. Sink drying/drainer area saw a lot of use, but my gas lines need reconfiguring for a port near the door for grill/lantern/stove connections. USB charger outlets saved outlet space. Built in outlet nightlight was nice for me but to bright for the kids.
Luggable loo potty seat worked well and contained my kids odors.
My wife bought me a hammock chair holder for a 2" hitch so I need to install a receiver on the trailer to use it ( and transport the bikes outside). May add a shelf bracket outside akin to the AC shelf to carry the generator, need to make covers for both. May make cabinets above the door if the sink shower corner doesn't provide enough storage.
For reference Weight wise the entire rig (car/camper) came in at about 11300 fully loaded with everything. Which puts the trailer in the neighborhood of 4-4.5K lbs depending on tongue weight fully loaded. In the future I may redo the loft bed to reduce weight (it's roughly 200 lbs) or rebuild the cabinets (which I should have done in the first place anyway, which would cut a chunk). It'll be close to my original goal of under 3.5k empty, though not quite there with the unplanned additions of the shower, double insulation, and other items I knew I'd be overshooting. All in all though it hits the mark leaving 2k+ in payload on the trailer, and well under the tow vehicles weights.
Shot of the Fam the end of the trip.

makes the effort worth it.