I agree that Miller would cost a lot in a trade. I also see his arm as a ticking time bomb.
I don't agree that Basallo is anywhere near on the table for him.
Based on that article posted earlier in this thread, guys I could see being interesting would include:
Position Players: Bradfield, Horvath, Beavers, Fabian, Etzel, Willems, Tavera, Sosa, Liranzo, Arias, etc.
Pitchers: a sweetener/headliner could include Bright, DeLeon, Weston, Chace, Sharkey (many here depending on the role in the trade)
The point is that you could still put together a very attractive package for a team targeting 3+ years from now to win without including Basallo or any of our AAA guys.