Too many NTC's to move the required salary. The Sabres will be on every single no fly zone.
They would have to Nate Schmidt somebody, then trade Tuch as the main piece. I doubt they have enticing enough prospects anyhow.
Partial NTCs. Only Stone & Pietrangelo have full no moves.
Two things to consider: NYR is desperate for toughness & have coveted Reaves for years now. Gorton is gone but it won't change their desire for him. The other thing is Vegas is expansion exempt so they can make offers for players that would otherwise be exposed. This is the optimal time for them to dump cap.
Reaves to NYR for a 3rd or more.
Holden + draft pick to __ for an ED exposed skater
Then all they have to do is move a top 6 winger after the expansion draft. Marchessault is having a great season. Ideally, you'd want to keep him and see how he looks with Eichel, at least on the PP, but...
Of course, there's always the possibility that they move one of their goalies.