So far as price is concerned, I paid $3000 for my SA (extractor-plate) .22 - in somewhat nicer shape - about ten years ago. I believe that valuation is about the same for either style. The SA arms tend to run in the 475-477K range, but I'd think an S-P re-barrel could be almost anything. Doesn't look like anyone's fooled with that one, but it would be nice to view the bore with a good wiping. Some of the early .22 ammo could be pretty bad if left uncleaned.