Bahahahaha. I hope the Avs sign Graves to a high-dollar longterm contract. That has potential disaster written all over it.
Habs would have no interest in Graves for the myriad of reasons discussed in previous threads. Expecting Gallagher in return is comical and out of touch.
Graves won't get a high-dollar long-term contract.
Somewhere in the region of $2.5m x 2 years - $3m x 3 years is probably where he'll land.
Sakic could tie him up for 4+ years but there's less value in that given that we'll want to maximise capspace in the next 3 years to give ourselves the best chance at winning before Mackinnon's extension, and that means that a 2-3 year deal works best.
That isn't to say that Graves doesn't deserve more AAV based on his play, but the lack of longevity in the league will limit his bargaining power.
As for Gallagher, yes Colorado would need to add. I think Gallagher stays in Montreal though, he seems to like it there.