Thanks, Steve.
I'll take a look at the Grant Line houses, too.
I found some Blair Line houses, but 20 houses could get expensive.
A friend gave me a 42" x 84" N scale layout with most of the flex-track already laid, but no scenery.
Being a cheapskate, I am measuring some of my HO built-homes and kits to draw my own plans.
I think I have enough plastic sheet and strip pieces to at least make 8 background houses.
Also, they may be easier to kit-bash and modify the looks of a couple basic designs.
I might even try to scratch-build a couple wood versions.
Thanks again for your information.