For me, it's already priced at about the maximum I would go.
I think this is being offered by a reseller/dealer of regional auto auctions cars. Since that might be the case, I recommend you get a CarFax report ASAP to see the history. Maybe someone on the ShopForum will help you out - I seem to remember an offer recently - search on CarFax.
Also, the part about "this is a Southern rust free car but it has a couple of rust spots behind the rear wheels" sounds like a typical (lying) used car dealer. In the pictures I see rust elsewhere, like in front of the front wheels. If it sat outside the floorboards are probably Flintstoned by now. (like the Flintstone's car, start and stop by using your feet through the bottom)
Pardon my being negative, I'm just a very skeptical EBay buyer.
Ken300D