Dubios

Replace Guhle with Harris and add Tatar

IMO you don't need to add Tatar if you do it's not worth it. Danault and PLD have very similar numbers both regular and advanced stats. PLD is younger and has a higher ceiling but after 3 years in the NHL he has not shown he is capable of hitting that ceiling. Therefore Danault + Harris = PLD's value right now. Adding an unprotected 1st covers the risk to Columbus in case he does break out later. Adding more means weakening Montreal too much IMO.

Then, I would add another pick (2nd or 3rd) so they take Byron and make the trade work cap wise this year and the next ones too

Any trade would involve Suzuki or KK+

They won't take Byron and we don't need to pay to dump him. Trading Kulak to someone like the Rangers for a 4th this season is enough to cover PLD this season. Trading Edmundson or Chiarot + 2nd to Seattle for a 7th ensures we don't lose Allen and free up an additional 3.5 Mil. We can make the cap work quite easily.