Being a 9000 series rifle does not make the rifle have any less value as far as operations are concerned. It only means that some people got lucky when a contract failed and the supplier used the parts to make rifles out of them (what a surprise.....all rifles are made from "parts"). The value of a 9000 rifle is the same as the value of a non 9000 rifle, monetarily or otherwise.
It is a good price. I would like to more about the ding though......