Speaking for here in my neck of the woods, (Kansas) $325.00 would be a a common amount asked by a dealer, assumeing good condition. Either gun show dealer, or local brick and mortar dealer.
So with that in mind, if you want it now, buy it and don't look back. If you are not in a hurry you may luck into an individual willing to take less.
First rule of economics~~ anything is worth what someone will pay for it.