Just to be completely selfish about the whole thing, I have an idea.
Theme: American West 1860-1930
It could be individual figures, a gang, civilians, buildings, terrain, whatever.
I have an ulterior motive but it could be fun. I just bought about twenty Old Glory Buildings with interiors and a bunch of really lovely painted figures from Wisconsin. I'd like to flesh the town out with more buildings and some more wide-ranging figures (women, particularly) and make up a really professional looking terrain set-piece town.
There's a twist. Although I've said American West and will use it such for a while, my ultimate aim is to convert it to a NSW South Coast country town of the early 1900s. The architecture is pretty similar. I'm looking at building a boat slipway, some simple port facilities and a small railroad station.
Anyone interested? The keyword will be quality. No knock-ups.