Savage may have had something in mind when they added those holes. I went online to Savage, downloaded a manual for a MKII. On p.9 they list manufacturers who make bases and rings for the rifle (the bases are all that would be unique). The manufacturers include Weaver, Burris, Kwik-Site, Millett, B-Square and Leupold.
It really shouldn't take a lot of looking to find these bases, as popular as the MKII is. Call Young Guns, Kaneohe Gun Shop, and Windward Gun Shop. If they don't have one sitting on the shelf, just run a Google search.