Angel, I've seen many of your posts and they are great. Funny, I never noticed we're doing the same durn Airstream. OK, I just started on the Sovereign
this week. It was parked for 25 years in Big Pine CA (high alt and hot in summer) with the street side facing west, so the tint on those windows has bubbled. Can't wait to see your pics and more description of your technique.
I'll start a thread on my interior modifications as soon as I get the systems operational. It's a center bath, so mostly I'm redoing the bedroom and kitchen counter to start.