Thanks, Tom. I hope you have as much fun building it as I did. Please let me know if you have any questions.
My only regret is that I don't recall what color I used on the engine house (or how I weathered it) when I initially put it together oh-so-many years ago. I suspect it was some sort of rattle can primer and a gray acrylic wash. I need to paint and weather the chimney that same color - or something close to it.
Jim