Honestly, this is what I would do because it maximizes the strength of all the players we have.
-------------Net-------------
----------Dvorak---------
Caufield-------------------Drouin
---------Niku-----Hoffman----
-------------Net-------------
----------Armia----Toffoli-----
Caufield-------------------Suzuki
--------- Petry--------
With unit 1 playing almost all the time on the PP.
Drouin can carry the puck in and be the main distributor, the A1 option should be the Caufield one-timer, however they can break this down by bumping the puck in the bumper for Dvorak, or Caufield can draw the coverage over and pop it back to Hoffman who can sneak in for a one timer on the opposite side.
If a PK has to worry about 3 shooting threats, and 2 one-timers, they will have a hell of a time.