I have just finished rereading the whole thread ()seen only in bits and pieces as it grew over the years). I have to echo what many have said earlier: marvelous stuff! The architecture and the engineering really interest me though I have no desire whatever to live there, at any point: too many people packed into tiny spaces!
Anyway, I wanted to make an observation: reading through the collectors guides, one reads criticism of the various toy/model train manufacturers' street light/lamp post offerings as being too large and out of scale. Looking through these pics, I believe that criticism to be invalid. Some of those lights and posts appear to fully 30 - 40 feet tall. Some of them may even be too *short* paired with SG trains.
It was also interesting to see prototypes of crossing sheds, crossing gates, and signals that inspired many miniature offerings. It was like looking at a Lionel, Flyer, IVES, or Bing catalog.