This isn't Oz but quite a few of smiths here stateside have done the conversion. Even if the barrel has plenty of weight forward, you need to add weight to the butt or put in a couple of recoil reducers. Another thing you'll have to do is to glass bed your wood to the gun also. Otherwise, the recoil will separate your wood from your gun. Ruger No. 1's are fairly light so all that has to be factored in. Just a couple of things to think about.

One other thing and it's the only time I'd ever, ever suggest it: It needs a (shudder) muzzle brake.