You should be able to get a good gunsmith to repurpose a 98 Mauser barrel.
I used to convert the M95 actions to 45-70, which was more a labor of love than realistic, but it worked well, after a lot of magazine mods.
The M95M was converted to accept the 8x57 rimless round in the mid thirties, so these very good and very strong, straight pull actions could be utilized by secondary combatants. This was a very good conversion IMHO.
The barrel profile and sights are identical to those found on K98 Mausers, they even utilize the same tenon threads.
A few of us, utilized some of the surplus Israeli and Brazilian barrels that were once available from several different outlets, along with bolt heads from Sarco Intl. to convert these rifles to 7.62 Nato/308Win. M95M trigger guard/magwells, already converted for charger feeding from the mauser 98 system, were available as well.
So, source a 98 "large ring" Mauser threaded barrel and get a smith to unscrew your old barrel and screw on another.
Now, you have to get your head around the fact that the fix may not be worth it, depending on why you want to do it, of course.
When I was playing with these actions, complete M95 carbines were $25 each, if you bought a dozen. Add $5 for shipping.
Barrels could be purchased in 100 lots, for the same price as rebar.
The only stocks available were what came with the rifles, unless someone wanted to take the time to carve one out of a block of whatever was available cheap, or modify some old stock with lots of composite filler.