Threads at Savageshooters.com suggest that Savage Customer Support can help with conversions. I don't know if they can help with your specific model and stock, but I would call them first.
Savage Arms CUSTOMER SUPPORT: (800) 370-0708. HOURS: Monday through Friday 8:00AM – 5:00PM EST
If that fails, you might talk to Fred at
Sharpshooter Supply and ask if he knows of anyone making the elements you want. He doesn't have anything like that cataloged, but he's a long-time gunsmith and specialized in Savages, so there's a chance he'll know if someone is making the parts you need. Obviously, the more specialized and custom the parts, the more your friend's budget is in peril.