None of the existing exterior marker lights work. Surprising, I know. We find some great vintage-style teardrop lights and install them in 10 locations around the outside of the camper. They're LED and self-grounding on the exterior skin of the camper, which makes it extremely easy.
These marker lights were purchased on Amazon in both amber and red options. You can also find them a vintagetrailersupply.com, when they are in stock.
In addition to the new marker lights, we find some new LED tail lights to replace the previous lights. Anticipating a theme, we guessed correctly those previous tail lights don't work, either. The new versions are not exactly vintage camper style lights, but they fit the space perfectly and cover the gaping hole that was behind the previous lights.
We opted for the chrome version at Amazon.
Let the destruction begin. This exposed wall is the rear dining area on the passenger side. We need to replace a couple of water-damaged support pieces and continue to remove unnecessary finishing nails. No consequential structural damage, though.
Here's the rear wall with the bench and toilet/shower area removed. The removal of the toilet was ... fun. You can see the large hole from the sewage pipe exit through the floor of the camper at the lower right. This will be covered and sealed.
We actually get to keep one of the ceiling panels in place above the kitchen area! Minor victories are well-accepted at this stage. The rear ceiling panel and curved areas of the rear wall are removed and awaiting new insulation and panels.
And we have new insulation! We opt for foam panels instead of fiberglass batts. Much easier to deal with and install, for sure.