If you want or can use a revolver with rails and an electronic sight and that extra weight under the barrel then you buy it. The problem is deciding how much that contraption is worth to you. Many collectors wouldn't buy it at all, they'd consider it ruined, but if you have a use for it then it's not ruined at all. The seller probably wants to recoup the customizing and the cost of the scope (and stocks). I bet that's putting the gun into the 4 figure range but it would not be worth a thousand to me because I don't like it. So we're back to what is it worth to you? Why do you want it, what will you use it for, or will you use it?
***GRJ***