I like that you for think Castro is worth this much... unfortunately he isn't to the Pirates. Castro, as I have previously pointed out, could be worth alot. The problem is he will only be worth a lot to the right GM, and the Pirates are not likely to waste that kind of talent on him. I could see the Angel or Mariners doing it, but reality is there are very few teams looking for a Castro-type short stop, and the few that are are not looking to pay top talent for him.
As far as Tanaka I think The Cubs will end up being Darvished on it... the Cubs will offer more than he is worth, however another team will offer FAR more than he is worth (I see Angels or Rangers being the out bidders).
And... CarGo? that package could bring back Stanton or Price, or someone else amazing. CarGo is a fantasy favorite for me, but he has really benefited from being in Colorado. He will not play in Chicago nearly as well.
For Vogs, Soler, and Almora I would expect top of the line, never injured, gonna sign an extention #1 pitching
CarGo's splits he is hitting for more power and a better avg this year away from Coors. Cargo is also signed through 2016 which is a year longer then Stanton and a lot more then Price. The Cubs are looking to be way to RHed so CarGo would help with that.
Tanaka will be the big splash everyone one has been crying for from the FO for the last 2yrs.