I had a friend approach me interested in selling a Smith and Wesson triple lock 44 special. The price he was asking seemed reasonable at $3500 since he said it was a rare revolver made for the Bisley competitions in England. He sent for a letter from Smith and Wesson and when it came it was found that the rear drift adjustable sight and grips are not original. The revolver is in very nice shape but has a few alterations to it. A nice triple lock is one of my bucket list guns. But not sure if I want to spend this much money on a gun that is not original. As to value what is something like this worth? Any help would be appreciated thanks.