Hello Coaster,
Sorry to see you had to end the project for lack of time. I'm new to LEGO trains and to the forum and I liked the ideas where this was headed. My first was this winter, it was a Norwegian Dovregubben with 4 wagons. I'm not great with CAM software just yet, but I have some CNC/Mold and 3d printing hardware I'd like to put to work. I saw your initial design and was very impressed with the detail. I'd love to pick up where you left off if that's something you'd be willing to pass on.
Let me know.
Jason