It's Christmas in July! The Puzzle is this plastic foam material with paper graphics stuck to it. My guess is the heat would be fine, just as long as it doesn't get too humid or wet. For 27 bucks, I'd try it. The other part of the castle isn't on a good sale yet, but probably by the time you finish that half, it'll go on sale again.
Also, my christmas town is also still up too - I moved it to a corner. It seemed like a shame to disassemble it. 
