I am a huge fan of Young, but I agree with the others here who have said he is on the downside of his career, and is not worth giving up top prospects for (Buch, Ellsbury, Andersen)...
With that said, if we could get him for say, Bowden, Lowry (who could be their third baseman), and maybe a lower level prospect, I would do it in a second. But considering they don't seem inclined to take less than Bucholtz for Salatalamachia, I highly doubt a deal like that would get it done.
Even though he is older, he is still a very good defensive SS, and a very good hitter, who can step in and be a leadoff hitter if Ellsbury faulters, or solidify the bottom of the lineup.