I'm working on a 7x16 trailer myself. If you look back to the first 20 original posts on this thread about wanting to build a trailer is my first post. Well 8 years later I finally got one. I don't have any actual pictures yet, but have a 3d view of my design in progress. Image attached. Anyway I have been making the wall rails and front base cabinet. Trying to come up with a solution that provides the most configuration options.

Eventually I will have 110v Shore and Gen power with 12v lighting and charge ports. Plan to utilize Golf cart batteries, RV bearker panel, Power inverter with auto transfer. 13 btu A/C unit. Trailer will have the ablility to transport may style planes and helicopters.

I will try and get some pics this weekend. Plan to work on it and fly as well since weather is expected to be nice. So not sure how far I will get this weekend as I need to paint the interior white before I get to far along on the customizing.

MadDawg