My brother has a 686 (don't know if its 6" or 4" as of now, he is calling me back) that he is selling. Here is where it gets complicated. He probably got it for dirt cheap (he uses barter system), I will see him around Christmas time (lowered price as a result of being a gift?), and he also gave me the Sigma 380 you may have heard me mention. If condition is 98%+, what would you think would be fair?