Where can i find a complete stock valve (and bolt if possible) set? I want to get a mini mag but really want the center feed and rather than trying to find a center feed or get a airsmith to do it i would like to get one from the attic. But cant afford that and a gun if you know what i mean. I would rather basically build a stock gun out of that. Maybe i will just ask for the gun and the body instead of upgrading anything else for christmas? Thanks!