Remington Mk 4 one piece picatinnie 20 MOA base, 30mm Mk 4 rings, 30mm tube long range scope
in either Nightforce, Vortex, Leupold Mk 4, US Optics, etc in 5-20x50 or equivalent. For the can (suppressor) you can get a Yankie Hill (YHM) Phantom 30 cal. for around $700 (plus $200 Fed. stamp) or you can spend about twice that for an AAC that doesn't work any better.
The point here is that you can do it right the first time or you can do it twice.