6,300,000. 6.3M.
Remove Holden, & either trade Clarkson or put him on LTIR and we have that cap hit available for 2 dmen, Engo, one forward, and one backup goalie.
If Hague nor Coghlan makes the team, and we sign Schuldt, Subban, & Engo for 900k each with Whitecloud as the last dman, we have 2,675,000 available for our last forward. I expect all three to get lower cap hits(especially Engo if he wants performance bonuses), but as you noticed I went with the highest possible total for worst case scenario.
For reference, 2,750,000 is what Haula costs. Which is why I think the Gusev trading talk is getting overblown, and he won't get traded unless somebody makes the McGM's an offer they can't refuse.