I wouldn't mind Perron, he could probably be had for roughly a Frolik type contract, he's a pest, and he usually compliments elite players well. Plus he's a right hand shot.
Ideally you would hope one of Poirier or Shinkaruk would make the NHL next year and break out, or at least someone from within rather than signing a bunch of UFA's to fill the forward core.
Gaudreau - Monahan - Perron
M Lucic - Bennett - Laine (

)
Colborne - Backlund - Frolik
Ferland/Bouma - Grant/Hamilton - Hathaway/Jooris
Can be done if you clear out some overpaid depth players, starting with Stajan.