I think that I still have some of the plastic cut-outs that you glue tight to the structures. I “stucco” my structures with hydraulic cement and this covers the plastic overlap.
These are clear so I just paint them to color. For the windows, I paint the black on the inside to simulate shiny glass with the lights out.
If you ever get down to Orange County (North Tustin area), I’ll give you what I have that you may want. And you can see the railroad.
Left over pieces of these, and similar, are what I have:
http://www.ozarkminiatures.com/scripts/prodView.asp?idproduct=12382
But you can get others from Precision Products through Ozark Miniatures. Here’s a link:
http://www.ozarkminiatures.com/scripts/prodList.asp?idCategory=1325