Do you know why there aren't hundreds of thousands of Rolexes from the 1960-70s available? Rolex doesn't make that movement anymore. How to you fix your Rolex and get it running again? A Rolex trained repair man can salvage parts from old watches he's been buying, and worst case, even buy a working beater to scavenge the movement, put the best together, and voila, your watch is fixed. After all, it's only a $30,000 collector dive watch, right?
Buy another one of those .22's, then make a choice, take the part out and fix yours, selling the extra pieces to Numrich, and you help make half a dozen other owners happy, too. Or, do nothing, the gun sits in the corner and rusts away.
Rolexes, Studebackers, the last flathead, whatever, there are usually 90-100 non working junkers sitting around gathering weeds and rust while someone wonders "where can I get that one piece to fix mine?" Well, just look around. It's not that you will spend more than it's worth doing it - YOU WILL - it's how you MAKE MONEY doing it that is the difference. A broken gun is worth more in parts than a working one in many cases. Some people actually make a buck on it selling the parts.
Ever see a watch makers cabinet drawer with 67 different Rolexes in it just laying there? Not for long. It's a constantly changing inventory thru auctions, repairs, etc. As time goes by, there will be less of them - will your .22 be working, or will it turn into a scavenged carcass?