I was reading one of your post regarding insulation. I was thinking the same thing as you did with your first bus. I have a 1994 Bluebird. It has the 2" yellow foam mat, and it dry. I think I am going to forego the ceiling removal and just start building. The idea is not 24/7 right now, maybe in a few years take it on the road for 6-12 months. With that being said, will the current insulation along with insulating the walls and covering windows be sufficient to keep temps relatively comfortable for winter. I mean 60 degrees is bearable and I will have a cast iron stove for heat. If you would like to discuss feel free to call me at 732 718 1177 or just respond. Thank you.