How about an aim high version:
BOS: Porzingis + Terrance Mann
WAS: Gallinari + Morris
LAC: Brogdon + #35
LAC may not be happy with this but they are getting a solid starter, perfect to play alongside Kawhi and Paul George, in return for 2 bench players. And as I said above, WAS is getting 2 flippable players instead of getting nothing for Porzingis.