Updates and the first trip report.....
Unhappy with not knowing my exact dry weight, I took it to Rocky Mountain Stone here in Abq and used their scale. The sell stone by the pound. You pull on the scale and get a first weight, load up and weigh again and they charge you the difference. It weighs 1150 lbs unhitched and 960 lbs hitched. That gives me a tongue weight of 190 lbs which is just a tad over 16%. I was shooting for error on the heavier side of 10-15% so I am pretty happy.
We took our first trip on Aug 6th which is the one year anniversary of the start of construction. We towed it up into the Jemez mountains near Los Alamos. We camped at 8800 ft and to get there we had to go up several steep hills. It towed like a dream. I towed it as fast as 70 mph but mostly I prefer to do 65 on the highways when I am towing anything.
The windows worked really well they provided plenty of ventilation. It was so nice to sleep in the cool, dark and quiet of national forest. We started a list of customizations that we would like. A hook for a towel here, a small shelf there, etc. Let's get to the pictures....

My wife made cushions but wrapping egg crate foam in fabric and using hot glue to hold the seams together. It was actually a measure of last minute desperation because we were trying to get out of town to go camping. They have help up amazingly well. If they keep holding up, I don't see a reason to change them. I like the fabric. It looks like leather but it is very soft cloth. The cushions that make up the seat back have imprinted designs but they don't show up in the picture.
I decided to use flexible magnets to hold the screens for the windows in place. First I cut and glued a strip of magnet all around the window frame. Then I placed the screen on top and added another magnet to sandwich the screen material. It works wonderfully.

I made the shelf lips so that they were attached to the shelf by a single screw. This turned out to be a good thing because they were way too tall. Here is the shorter and much better version of the shelf lip.

My wife made a curtain for the face of the galley counter. It easily slides out of the way and it helps to tidy up the appearance. Most of the time camping it is slid to the side with the sink.

Welcome mat stores perfectly inside the door during travel. I wish I could say I planned that but it was just luck.

I installed a rear view camera. It really blends in with the bumper. It makes it so much nicer to back up and it eliminates the blind spot. I chose a wired camera because I didn't want to worry about interference issues. I'll try to get a shot of the screen in the cab of the truck next time I am hooked up. So far that has been $65 well spent.
Speaking of money well spent......

For lighting we bought this $30 LED lantern from Walmart. It puts out 500 lumens on high and that is actually too much for the trailer. Luckily, it is dimmable. I was going to hard wire lights into the trailer but the lantern works so well that I don't see the point. Plus you can take it off the hook and take it outside. It's the best $30 I have spent in a while. You should get one just to have around. It's a great light and the bang for your buck is hard to beat.
Not pictured is the spare tire rack that slides into one of the receivers on the back of the trailer. I'm working on getting the numbers together for time to build and total cost. I'll post those as well as parting thoughts on the project soon.