You can also reach out to AllenM. He is a member here on INGO and is in Avon. He did a 300 Win Mag 700 project for a member here and documented the build in a thread under Diamond Collision. That's his full time gig. He is also a FFL also so no worries on leaving your rifle overnight with him. He also builds killer 1911/2011 pistols. (Don't ask me how I know....)
I've shot the particular rifle mentioned above. Wow ia all I can say. Here is the build thread.
https://www.indianagunowners.com/forums/diamond-collision/414869-1911ly-rem-700-300wm-build.html