Thanks, and you are correct Randgust is doing this project in N scale. The frame fitting would appear to not be an issue. The GP7 Atlas frame will mate well with this project. I'm in on that one also. I model Eastcoast in HO and Amtrak is all over the Eastcoast. The CF7 will be part of a MOW Yard along with another GP7 a Pumpkin if you will.