The Kings can win this game. But they are going to need major minutes from a "good" Bagley and a solid game from Barnes to do it. Bagley is key because, other than the Joker, Plumlee is a major factor for Denver in making hustle shots, interior passing, and rebounding. And then the guy coming off the bench is Millsap, an excellent rebounder. In the prior game with Denver, the Kings played a lot of Bjelica against those guys. It didn't turn out very well.
Also, make the Joker a shooter, not a facilitator. IMO, the last thing Joker wants to do in a running game with the Kings is expend even more energy on getting his own shot on the offensive end. If you double team the Joker you're handing him and Denver a gift. The Kings can't do stupid half-way double teams like the last game (which gave Denver wide open shots), but just stick to solid defensive principles. Lastly, attack the Joker when at the perimeter. Don't run horizontal to the basket when he's around; that's when he can get handsy and steal the ball. Just turn and attack the basket. Good things should happen.