I got a hold of a 547 that someone "worked" on. The gun itself is in great shape, but the person who tried to reassemble the extractor/cylinder assembly really screwed the pooch on the spring. I've done my best to un-kink it, even resulting to trimming off the first two turns which were hopeless, but it really needs a new spring. Of course they are not available anywhere due to the relative rarity of this gun and the time that has passed since it was discontinued. You guys are my only hope. If someone has one of these rattling around in their parts boxes, I would love to buy it.
Please PM if you can help!