The Ralph will have the game on alternate monitors around the concourse. Not sure what is in the suites, but would guess that they have tv's that they can hook up to the game for you.
The wifi gets a bit slow with lots of people on it, not sure it would stream pluto on your phone, but its worth a try.
I'm taking a small radio and ear buds along so i can listen. If hockey goes poorly, may walk out to watch on a monitor. Or can run iheart inside the Ralph, assume it's on 100.3?