Need Opinions - Online Gun Sale Issue

[Batteriesnare]

Replying with pictures. I thought about having it chopped/rethreaded, will need to try and find a competent smith to do so - taking suggestions if anyone knows anyone. Would probably look to go to a 26-28" field gun configuration. It may be cheaper to buy a new one if neither of the manufacturers will help.

Here are pics of the choke (I didn't realize it at Bowers, was too pissed at the time I guess, but it actually blew metal from the choke out.) I tried to point to the bulge, it's a little hard to see when not in person.