Awesome job - looks great! That's the first train room I have seen with a fireplace. How did you get your wife to authorize this?
Gary, when we moved in, back in 1987, there wasn't a dedicated room, just a fireplace at one end of the basement. I built the room as a game room ( a term popular here in the Pittsburgh area). We used to call it a rec room. Anyway, my three sons used it as their personal "den of inequity" during their formative years. Then, I turned it into my home office for about twenty years. When I retired last July, after clearing out the office furniture, I began the transformation to a train room. It was inevitable. Something I had envisioned for quite some time. The wife is happy I am now in the building stage, and out of the "buying" stage. Well, we'll see what transpires from here. It's been an arduous journey to say the very least. I think I may be seeing a light at the end of the tunnel. I only hope it doesn't turn out to be that "white light" you hear about now and then. 
