Unless we don't expect Perron and/or Zub to return during the regular season, we would need retention to acquire Kakko. Or, they would need to take Forsberg.
We also won't want to move our 2nd this year because we may not have a first.
Maybe something like:
Kakko (@ 521k) to Ottawa
OTT 2027 2nd + Boucher to NYR
OTT 2025 4th to Third party Team
Boucher has no value, but he is basically in place of the late pick for the retention spot. We will assume if he's worth a 7th or future considerations to a normal team, maybe he is worth a 4th or 5th to the Rangers because we know they liked him a lot at the draft.
With that said, it wouldn't shock me if Kakko went for a lot less than most people expect if he is traded for picks. I think a low value 2nd or a 3rd sounds right, but he is basically a rental because no team is qualifying him as he is now. Maybe in a perfect world we can get Kakko for Boucher and a small sweetener (assuming we have the cap space).