Daniel W Cowen Riflesmith 224 Wells Ave S, Renton, WA 98057. Might be a little far from ou but IMHO worth it.
If he can't do it he will either refer you to someone who can or tell you why it shouldn't be done. Does superb work.
Don't know how far you are from Yakama but Check out Shooters Supply, run by Don Manning. Use to build match rifles for the NG. The rebuilt & re-barreld my M1A. Does excellant work.