If it came home with a Relative, I wouldn't consider an alteration, there are too many 'nonstoried' Mauser actions available at very reasonable cost for project rifles, rather than mar one with a great history inside the family.
A 358win rebarrel would be a great combo to play with, there are still inexpensive 35 Whelen Barrels available at midway that make great shooting/hunting guns too- if a .35 caliber is what interests you
https://www.midwayusa.com/product/1...-in-14-twist-24-chrome-moly-in-the-white Desertshooter
