I'm in the stay away from David Yale group. He ruined a set of Fox barrels for me and wouldn't stand behind his work. This lesson I learned the hard way and now I don't want to see others go down the same path.
This looks like a fairly simple fix that an experienced smith could take care of.
You might try Steve Bertram in Boulder 303-938-1996. He's a great guy that I'm sure could take care of this for you. Steve posts here as "SKB" and may chime in on your repair himself. If the seller would be willing to pay for the repair, I'd just get it done and not worry about the UPS hassles.