First of all Don't send the money until you get it resolved. As far as the price goes it seems like a fair price provided the gun is in really good condition. But remember it is a used gun. Also if you have to replace the sights that can get spendy and the scope mounts that are on there are not top notch. So all in all I don't think he should be holding you up on the shipping because he got plenty for the rifle.
Art