If you are getting it from a friend and was sure that the condition of the CB was like new as he said then I would not be afraid to pay up to six hundred bucks for it. BHSS is one of the cheapest places on the net, and like you said I too came up with 700 bucks. Looks like everything in a right stuff pac only missing the stringing aid, that comes to 460 and 250 for that stuff new. So if I had to I would be able to go to six if the condition is as good as you say. But I would also start as low as you think he would goand see what he does.