I have a circa 1964 Old Model Super Single Six that was passed down from my grandfather to an uncle then to me. I'd like to mount a red dot on it for flashlighting coons and skunks out in the back yard. My old eyes have trouble seeing in the dark! I'm thinking something along the lines of a Burris Fastfire 3. My searches thus far have turned up nothing for this model. I really don't want to modify it in any way, other than just put a sight base on where the adjustable rear sight mounts. Any suggestions? Thanks in advance!