I agree with your classification but for three things :
1- I'd put Petry in the trade for picks/prospects lot. He's reached a good value, but he's getting older... And he's got a NMC (thinking of expansion here... )
2- I' d be willing to sacrifice a young player (Lehko? Scherbak?) in a bigger deal for that top C or LD.
3- I'd prefer to keep him, but Galchy seems to be on the out. I'd be ok with it if it meant we'd get a player like Hanifin or Wennberg...
Other than that, good job...