David:
Thank you for the clarification, David. As I posted above, I wasn't quite 100 % sure about this '009' - but now I know. After all, that's the fine thing at the Gauge: You always learn new things.
H0e is the normal designation for H0n30 in Europe, and there are quite a lot of models around. Famous are the models of Austrian and Swiss 2-1/2 ft narrow gauge trains by Liliput. In German the 'e' stands for 'eng', also meaning narrow.
H0m track gauge is 12 mm, so you could use TT gauge track and running mechanisms (if you still find them) or you buy models (mainly Swiss narrow gauge) made by Bemo (not exactly cheap models, though).
stew,
your pic is very small, so I can't see any details. So it's difficult to comment about it.
Is the black bordered rectangle in the upper right the free aisle space for you? In this case I think it could be difficult to reach the tracks along the lower and left wall. Or do you plan to includ pop-up openings in the bis white areas?
Ron