I've read that the AI version of the 25-35 doesn't work well when fire forming original brass as it's to thin. Maybe a 30-30 AI would be in order. I'd have the same smith do the work that did the Ruger and several bolt rifles. This one would have a half round half octagon barrel.

I did a stalking rifle on a VZ 24 action a year ago in what else 275 Rigby:)