Still though, either throwing money at him, or a sign-and-trade will be required.
I know this isn't a popular opinion but I would be fine with giving 12 mil a year to Hayward and/or giving up anything not named Kemba, MKG, or Al to get him through a sign-and-trade. This even includes the coveted Detroit pick as well Zeller and Biz. I'm not saying I would give ALL that up by any means, but the Detroit pick alone would do it. And that's assuming 12 mil a year wouldn't get it done to straight up sign him.
This is my opinion because I think Hayward gets us to the next level far more than any other player that is seemingly available (and realistic) would. I also am not convinced the Detroit pick is going to even be a top 16 pick next year.