Try Jason Barden of Pumpin Mountain Gunshop. He owns the entire contents of the remaing parts from Savage when they stopped making the Fox gun. He has everything. I mean everything from screws to entire parts kits with forged recievers to make a complete custom gun.
You can get ahold of Jason at Jason
pumpkinmountaingunshop.com
He is a great guy. I bought a complete second barrel and forearm parts for a custon 16 gauge project I have going. He aslo has a web site with all the offerings on it.
Good luck.