New 416 rem mag build?

[FreeAll]

Tried to find Winchester m70 416 rem mag for some time now, at this point I am going to build one. I have a American Rifle Company Coup De Grace long action already. Would like to hear some recommendations on barrel contour, length, twist rate and stocks for this build. Rifles intended use would be for Africa hunts and Alaska bear/moose hunts. Also thoughts on muzzle breaks and suppressors for this build.