Hello, again, Kooklik ! The choo-choo guy - still following and still marveling at your meticulous masterpiece ! Thanks for amazing us with what is possible with an abundance of thoughtful and thorough design work, and dedication to careful construction. Such a project - from concept through design and compilation to actual construction - is likely more than most of us would even attempt, on so large and complicated a model. Again, I salute you for your industry and craftsmanship. Bob C.