Be sure to put this roof on first! then the other. I found this was a little hard to place but did get it ok. This pic was taken at end, just fyi, but roof is shown with red arrow.
It turned out wonderful, and how lovely that your grandkids helped, @jeanneL! That makes it even more special! The tips are really helpful too, especially about the roof. It looks so cozy with the lights on. Great job!