I watch the Hawks a lot, including this year. That team is an absolute dumpster fire. Max Domi has the lowest Hockey IQ of anyone on the planet and Kane is basically going through the motions until they can ship him for assets. Toews has easily been their best player. He plays hard, for 200ft and 60 min every game. He has found his scoring touch and has been terrific on faceoffs this season.
That said, I wouldn't give up a 1st rounder to get him as a rental. And that's what its going to take to get him, regardless of the cap situation.