We reinstalled the running lights and went camping again this weekend. The camper looks a bit better with the lights installed but is still a boring and will need some type of design improvement.
As for the camping the trailer works great!!! it got down to the mid 40s each night and we were cozy inside the camper. We didn't have a site with power so it did get a little chilly but nothing bad. I was sure glad that I wasn't in a tent.
We did have a bit of trouble with the RV windows, essentially they let the cold right through them. Our breath condensed on them and seemed to help the cold go through them even easier. We are thinking of making some heavy curtains which should solve the problem.
We have reserved a site with electricity for this upcoming weekend so a small electric heater should make a world of difference.