So, I've been wanting to build a long range rifle for a while, (and I am a noob to long range shooting, so take it easy on me) and i have a remington 700 sps stainless in 7 rem mag. I was thinking of getting a bell and carlson a5, or sucking it up and getting a mcmillan a4-a5, or manners. Anyways since I'm from GA I figured I'd get APA to do my gunsmithing, and do a 26" mtu contour from rock creek, krieger, bartlein, or similar, muzzle brake, recoil lug, bolt knob, badger m5 (or wyatts if i choose b&c stock), action truing, and black cerakote on the metal. if i supply the parts does anyone know about how about much it goes for them to assemble and smith it?