Well, there's usually one or two down by the train tracks. Can't guarantee their quality/intactness though.
Storefronts though, now those are hard to move. I've got access to several hundred of'm, but I don't think I could send you one very easily... It's expensive, and there's a few ppl that are kinda atached to them and might object. The police, for one. Several owners, for another.
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Zitchas
The Wanderer