If that is the one then it looks like a killer deal. I admire the OP's gall in actually negotiating the price down by 50% without even visiting. When I see a bike that is 100% over what I want to pay, I don't even both with it since I know that negotiating that far is an impossible task.
Now tell me, why is it that 90% of craigslist posters can't seem to take a photo without either turning off all the lights first, or shaking the @#$#%@!! camera, or both?