if they can't get hayward, then the max i offer is amir (s&t) + marcus + jackson + mickey, no way am i trading crowder or the nets unprotected pick
it would work trade rules wise if camelo argreed to forgoe his trade kicker, 
carmelo trade value is at a all time low, jackson had done his best to acheive that plus carmelo has only 1 year plus a player option left in his contract anyway.
i think carmelo might be talked into staying in the same divison as the knicks as extra motivation, he has the no trade clause so he has leverage
however i feel jackson hates the c's, and will try to steer him the the clippers