Hi BM, want to welcome you to the fourm. Your going to enjoy that 300 winy. Good choice to my way of thinking.
Theres a big selection in bases and rings for remingtons. Tactical or standard? Do you want an additional 20moa base? If so that would indicate a tactical base which can be had from Near, Nightforce, and a host of others. Figureing out what you want is half the fun.
Enjoy the ride.