Verkkoso, i'm in atlanta, and i don't understand what it is that makes this particular area such fertile ground for the gems that atlanta craigslist routinely.
Verkkosellers on craigslist don't want to sell at a wholesale price.
You will (almost always) not get more money at a dealer.
If kbb price is telling you otherwise, i highly.
The best thing you can do is go in silently.