You’ve got a beautiful rifle. I agree, I haven’t seen so many custom rifles built on 1903 actions in recent decades, but I think it’s one of the most elegant actions. Some of my favorite rifles of all time are th G&H spotters and Wundhammers built on 1903 actions. I know Ed Lapour was manufacturing safeties for 1903’s well into the 2000’s, so the custom conversion market was still strong enough to support that. Let us know how it shoots!