Had thought I may want to rechamber to .308 as there several russian, spanish and finns I have that were converted to that caliber.

I'm a purists to the point I can't shoot it. If it don't work, trash
is it all matching? if so, it's worth a lot more than your average russian capture (over $1000). if you want to re-barrel or re-chamber anything, don't do it with an all matching 98k. SERIOUSLY.