I know that this isnt very realistic but its fun to think about. I think booker would fit super well with hali and Pascal. I believe that this is close to the best package the Pacers could realistically offer while remaining competitive (they could throw some swaps in if it makes you feel better). Suns get some great trade pieces in Mcconnel and Toppin and also a young player with a lot of upside in Walker. Pacers send Turner and some seconds to the pistons for Duren in a salary dump (from my understanding the Pistons aren't super enthused with Duren for some reason but I think hes good). Pacers starting line up: Hali, Booker, Mathurin, Pascal, Duren.
Suns starting line up: McConnel, Beal, KD, Toppin, Nurkic Pistons starting line up: Cunningham, Beasley, Fontecchio, Harris, and Turner