Hey all, I'm looking to purchase a 629-2 4" (pre-mountain gun/mountain gun) and am a little concerned with a burr and gouge on the crane. Seller is reputable and gun is in otherwise good condition. I really want to buy it, and suppose I could send off to get repaired if this was to become an issue, but figured it would be a good idea to ask the experts (I covered serial number as I have not yet purchased). Additionally, I'm thinking this is a 1988 629-2? Thanks in advance!