I have been busy doing boat work these last few weeks. I've been modifying a trailer to haul two Sunfishes without damage for long distances, and putting an electrical system on my 30' keelboat for night sailing this year. I should be done with that stuff soon.
I bought some 16 gauge duplex wire and located an inverter/charger and picked some Wago DIN rail terminations. I am eager to start wiring.
My main concern is making this camper as dry as possible on the inside. So when I strip everything out, I think I'll seal the outside seams with AirStream seam sealer. For the inside I thought closed cell foam would work best. Suddenly it occurred to me the best product might be to use spray in bed liner for a thin layer inside, and then fill the cavities with closed cell foam after I finish the wiring. That will give me three layers of protection. The bed liner and spray foam will all some structural rigidity as well.
So I will need to remove and re-bed the windows when I do all this, so I still need to order a few more products, two sided tape to seal the windows, and new stainless screws to re-fasten the windows. I have some bed liner for my truck that I can re-purpose. I probably need a couple of new batteries for my screw gun as the ones I have won't hold a charge. I hope to start taking my camper apart next week.