Don't think so either, though he should still be a nice piece and would be a huge upgrade in comparison to what the Jays were rolling out there at second base this season, and doesn't cost much in terms of salary. I'm fine with Guerrero or Turner to be honest; Guerrero has more upside and is younger - whats his defense like though? Turner is probably a safer bet.
I think Van Slyke is a must as well - perfect platoon partner with Lind and can play all three outfield positions and first base which is valuable.
I don't mind Crawford - I think he'd be a solid replacement for Melky in left and if I recall Crawford always loved hitting at the Rogers Centre. The Jays would have to go out and sign Drew or Cabrera to play SS (Drew preferably). They solve their questions in LF, 2B, DH all with this deal, and replace Reyes at a reasonable cost.