Ron,
I just have to say - this is an absolutely phenomenal piece of work. Ambitious, clearly, and executed to a very high standard. I did encounter these pages some time ago, but wasn't a member of the group, so I was unable to leave my comments. I intend to return here frequently to follow your progress.
Some years ago, I contemplated taking on a similar project to build a model of Birmingham Snow Hill. It's well-documented, all the original drawings are at Kew. My main problem with it is not currently having a space large enough. The longest platform was 1200 feet long, so there's 4.8 metres of length already, but I reckon it will take 10 metres plus the length of two fiddle yards, and each would have to accommodate a King and 10 coaches. I was frightened by the complexity of the steelwork in the 'ridge and furrow' overall roof, but having seen what's possible, maybe I will have a go at it if I ever have a 60 foot shed available. ;-)
Andy