Perreault / 1st for Stone.
Not what I'm suggesting, but I wouldn't be surprised. Jets need to move Perreault in the off-season for cap reasons. It diminishes their forward core for this playoff run, but maybe saves them a cheaper asset for future rosters.
For the Sens it gives them a competitive player this season - remember, they don't want to tank so every win is good.
Maybe the Jets acquire another less forward on an expiring deal as a separate deal or part of the package?
Perreault, 1st, 2nd, B prospect (Gustafsson, Valatti) for Stone and Dzingel?
Perreault and 1st for Stone.
2nd and B prospect for Zuccarello.