Welcome.
Yes, several mfg have barrel nut systems these days. And most barrel makers have 'Remage' barrels that do the same thing for any 700 action. IIRC the threads are different than the Savage, but, I could be wrong on that.
And, yeah, it's harder to find wood stock rifles of any type these days. Your best bet is to visit pawn shops or those few gun shops that have a good selection of used guns.
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