You could keep an eye out for a M70 in 300H&H. I passed on a nice one, to my regret, last year that was in great condition and was only going for $1,500. I saw another pretty nice one recently for $1,800; both were pre-64 standard grades. You could find a nice one in 30-06 and convert it but it would probably cost a lot more money than finding one in the caliber you want. The 30-06 barrel contour should be fine but you have to: get a new barrel in matching factory contour, get the H&H magazine box, spring and follower, modify the bolt face and extractor, open up the bottom of the action for the new magazine, open up the ejection port and possibly tune the rails for feeding.