LA probably isn't moving Clarke.

LA doesn't do this. They're not moving either Clarke or Byfield now (as they are both young with high upside and potential). Not sure that Dubois fits into LA's forward core unless Danault moves to 3C/LW.

I'd say no as LA. Clarke is a nonstarter in any trade.

Money doesn’t work for LA

This is too rich for LA but Byfield and Clarke for Hellebuycj and Dubois basis is in the Kings interest. LA Stanley Cup window includes Kopitar and Doughty. If you wait for Clarke and Byfield to become elite, Kopitar and doughty age out and the Kings are no further ahead and have to wait further years for the window to open. Vegas and Florida proved being bold works. Jets will need to eat some salary to make this work and one year 50% salary for Hellebuyck and Victor Arvidsson should make the money work for LA

Packaging PLD and Helle would be a mistake for LA. They're never getting this good of a return for both together, as you're just asking for way too much, and the deal would absolutely screw LA's cap. WPG can get 2-3 good pieces for each to seperate teams that target one or the other.