I happened to see that Micro-Mark has a Cupola Kit for the Bachmann combine. It says it is a laser cut wood kit, so what does that mean? Is it one of those box-of-pieces that you start from scratch? And what about the ladders and handrails? It would appear that the hardest thing would be to develop a template for the roof --- unless you are supposed to cut the cupola into the roof. So has anyone worked with this kit? Lee in Tucson.