To my recollection it's 1" foil faced polystyrene-I just squeezed it between the framework. Ya, I thought it would be easier to punch the windows in after the exterior skins and interior walls.
Fair price IMO... Have you driven her much yet? You are making so much progress! Course you got the high-strung boys to help you when in need!
I like the narrow window height on the remaining windows, will look so good with some tint & a few other windows punched in...
Captain's Log: As summer recedes, large quantities of insomnia have come aboard. As I write, questions of paint schemes, trim rings and should I use propylene or ethylene? haunt my psyche. All is not dark though, I heard murmurings of a water tank factory who sells direct in my vicinity. I drove up today and stumbled upon a bus converter's oasis--tank after tank of white, cubic, water holding perfection--the only thing missing was the 200% mark-up. I'll post some pics manana to prove to myself I've done something.