Roger,
I tried to center my search around Frederick County, VA, but I guess you weren't impressed.
We are getting a little late in the season this year. You may also be able to rent a fertilizer spreader, or borrow one for this year while you're looking.
Anyway, use SearchTempest to pick up a few more local towns.
SearchTempest Online Classifieds Search - All the Classifieds. One Search.
I just bought a JD 602 spreader, 2 wheel tow behind broadcast spreader, "needs a bit of work" for $300. I probably won't get it cleaned up this season, but I'm hoping that I can get it setup to pick up a couple of tons of bulk fertilizer, then tow it from the store to the field.