Stock cut down, takedown discs and sling slot plugged, receiver drilled and tapped for Weaver mounts, 1998 Leupold M8 6X scope, rebarreled for 7x57, checkering added to stock at wrist and forearm (not professional, but not horrible), s/n don't match, receiver marked "bnz 43". Also no rear sight.Tell us about the 98. What was done to it to sporterize it? Any markings to possibly I'd gunsmith!