I don't think the Canucks need to be spending assets to try and add Zacha, just my opinion though.
Haula I am not sure why or how he is a player who will need to take a " show me " contract. He has proven he carries value up and down the lineup. I suspect he will sign a more than solid deal with a club as a top nine contributor.
Vancouver as much as may have Juolevi, Rathbone or Rafferty in the lineup still needs to add an NHL piece. Koekkoek would be solid if your trying to be cheaky and snag more offensive potential. Otherwise a veteran right hander would be ideal, don't think Vatanen ( not signing for 1 million ).
I would wonder if a Connor Hobbs would be worth a signing for the AHL, still some potential there ?