Where in SD are you. If I am not mistaken, Longrifles Inc is near Rapid and from what I have herd is OUTSTANDING!!! If you are on the other side of the state I may have another solution.
My guy is in La Moure, ND, about 150 miles NW of you. He built one of my 1000 yard Br guns and has done about 1/2 dozen guns for some of my friends, and we are 220 miles away. I shoot 1k br with him and he also goes to Pierre for the 600 yard shoots. Hell of a nice guy and a hell of a smith!!