I don't think many want to move DVO, me included, but who knows with Chayka. In your scenario you have Stepan as 3C. In the cap world, you can't pay your 3C 5 mill.
If you wind up moving Schmaltz out of the C role by signing Duchene, then Stepan winds up as your #2. All that I am implying is that the flexibility is there to move some pieces.
This is probably a bad example, but let's say that we receive word that Taylor Hall is not keen on returning to New Jersey and there is some interest on his part to sign a long-term extension with the Coyotes. His last year this year finishes up a $6 M AAV.
If there was a good chance that Hall was going to sign an extension, would you be willing to deal Dvorak, Fischer, and #14 (probably need some other additions) for Hall's final year?
Hall-Duchene-Keller
Galchenyuk-Stepan-Schmaltz
Grabner-Richardson-Hinostroza
Crouse-Cousins-Garland
Hayton
OEL-Demers
Chychrun-Hjalmarsson
Oesterle-Goligoski
Connauton-Lyubushkin
Raanta
Kuemper
This assumes the following:
Duchene - 7 years, $9.6 M AAV
Cousins - 2 years, $1.1 M AAV
Crouse - 2 years, $1.8 M AAV
Hall would probably be in the same range as Duchene for an extension ($9-10 M AAV starting next year).
This would leave us at $83.3 M on the cap hit. Easy trade of Hossa, Connauton, Oesterle, or Goligoski gets us under.