I'm going to send him a 12/22 HP O/U barrel set off one of my Valmet 300 series guns to see if he can bore it to 35-30. Since the HP is based on the 30-30 case, it should be easy enough, and the extractor won't require modification. The good thing about this Valmet model is the ability to regulate the barrels with a flat head screwdriver.
He'll also get a Husqvarna 8X57 on an FN 98 action to become a 9.3X62.