Jupiter is right. Check ebay ads to see what wells well. Cams for top rangefinders and infinity stops are sometimes hot items. Front standards for Crown/Pacemaker cameras fit on Anniversary models, and make the oldies a little more versatile. Odd size viewfinder masks are scarce. Extra front standards can be mounted on the camera as stages for micro photography. Once you've sold the more desirable items individually, offer the rest in lots.