I rescued a Diana 36 years ago and have finally gotten around to trying to revive it. The issue is that the sights were removed and the rear sight mount was destroyed. The receiver seems to be too thin to mount a standard picatinny rail which is the best option. Has anyone ever tried to drill and tap this receiver? I still have what is left of the rear sight mount and considered epoxying it onto the receiver as the screw mounts are done for. Having a scope mounted to an epoxied rail seems like a weak idea on a springer of this recoil. Ideas?