Assuming Irving doesn't want to be back, what about this 3 team trade
Portland - Davis
Los Angeles - Irving, Sharpe, #3
Dallas - Nurkic, Little, 24 Por 1st
Portland goes all in with Lillard, Davis, Simons, Grant. LA get Irving, a nice young SG, and 3 which they can use in a trade for an established star or draft a potential future star. Dallas gets a solid center, a reasonably priced wing, and a future pick along with a good sized trade exception to get out of the Irving experiment which didn't work for them.