I think a sign and trade would cost us every major asset except Tatum & Brown. Sending Kemba & Hayward to a team of their choices and the returning players + picks would go directly to the Bucks, along with our young prospects and picks going to Bucks no one could out bid us.
Milwaukee Bucks: Myles Turner, TJ Warren, Jeremy Lamb, RJ Barrett, Julius Randall, Robert Williams, 2020 14th pick, 26th, 30th, 2022 Boston Celtics pick
Boston Celtics: G. Antetokounmpo, T. Antetokounmpo, D.J Wilson
New York Knicks: Kemba Walker, George Hill
Indiana Pacers: Gordon Hayward, Langford
I think a team with Giannis, Tatum & Brown has the prospect to be as dominant as the LeBron Heat team except with more longevity.