To the OP, I love the idea. The board in general does not, I've said it a bunch of times and every time it gets bashed like crazy.
Pho is right on point number 2, the kings probably just won't trade DMC till they have to. But if they ever did, we would be silly not to take Rondo too. He is a FA so we wouldn't lose any assets for him. He might even take a discount to stay with DMC/come home/be on a stacked team.
IF we could get DMC, I'd say we should also overpay and try to get Melo too. I'd trade all of our picks as well as Rozier, Hunter, Mickey and Young to get a roster like this next year:
DMC/Amir or Kelly or Zeller
Melo/some cheap ring chaser vet
Crowder/JJ
AB/Smart
Rondo/IT
I get the pessimism in that The Kings and Knicks probably just keep their stars, but what I don't get is if this board collectively was in charge of the team and the 2 deals needed to make this work were on the table it would be a resounding no.