I have had a barrel retreaded from a 700 to fit the savage small shank. I bought the barrel with this in mind, it was a hart barrel that had low round count. If you have to contract the lath work out your looking at adding on $100 to the cost of the barrel.

In my case I picked up the hart barrel for $40 because it had a short tenon, changing over to savage took care of that so I had a hart barrel for my savage in 243 impoved for $140.