Seems like a lot to me. A couple month rental for a first round pick? That is only worth it if you think he will push you over the edge to win a championship. There is very little chance Jazz sacrifice anything for Dragic right now. Maybe they go after him in the off season though.
The main reason to trade for him is the opportunity to sign him for more money than anyone else. The benefit of Dragic is that he can play the point, but he's a legit combo guard as well. Flexibility allows to to use Burks, Exum and Dragic together in various combinations. If DL truly does want to keep Kanter, trading for a guy to maintain his Bird rights makes a lot of sense. Can't make a run for him in the offseason without cap space. Wouldn't mind trying to land Middleton for Kanter and then flip a pick for Dragic. Jazz 2016 pick is way more valuable than any of the other assets I've heard suggested brother teams.
That would give them
Gobert, Favors, Booker, Novak and the rights to Tomic for the bigs.
Hayward, Middleton, Burks, Hood, Jingles and LilSap for the wings.
Dragic, Exum, Burke and the rights to Neto for point guards.
Plus then they'd keep their 2015 picks to add depth. And the MLE, depending on when and how they use it.
Gobert, Favors, Hayward, Middleton/Burks, Dragic - Burks or Middleton, Exum, Booker, Hood, Jingles, Burke and the 2015 pick off the bench. Not a bad group TBH.