Looking for a range of generic stone structures in 15mm.

[Doc Twilight]

Hello, everyone -

I'm trying to find a range of stone structures in 15mm. Specifically, a mill or two, some generic buildings, and a small to medium sized fort, in 15mm. So far the ranges I've found are all very Europe or Modern specific. What I need is something that would work for 19th century Mexico in a pinch; adobe won't do for this particular project, I'm afraid. Scratchbuilding is out of the question (no time to do it). Any suggestions?

-Doc