I setup like that could be used for other things, like mini-collectable RPGs. I think it would be really neat to add an N-scale train to that layout. Inspiring work indeed.
our digi q´s are near the scale called H0 1:87 not N !
I found some Combats made by ROCCO 1:87 non functional but nice in detail ( perhaps a little "moding"). There are a lot of models which you can take for a nice playable diorama. I´m going to build one.