All I know is don't send it to whoever that is here in Oklahoma that "specializes" in repair, restoration and conversion of them.
Webley's go in and never come out... well documented. Anyone remember what their name is?
Truitt in Yukon. I know a guy who took an antique Winchester 1873 to him for restoration, and finally was able to track him down and get it back about a year later. Luckily the douche hadn't touched it that whole time, just had it sitting on a shelf. I've heard stories of people sending him Webleys and getting somebody elses gun back, lol.