Karlsson would need at least 7-7,5M... so you need to shred +/- 10M$$$$
Send Reaves back to StLouis with a 4th round pick for a 5th.
Eakin could be sent back to Dallas as Spezza will be off the book.
MTL would take McNabb & Haula for couple of youth unexpensive player like: Thompson as 4C, Juulsen + 2nd. (NO SUZUKI, NO POEHLING, NO BROOK, NO 1ST) it is to accomodate both team.
D would look like:
Schuldt- Schmidt
Theodore- Miller
Merrill- Holden
Hague & Juulsen in backup.
F: Glass would take the 3rd C

Can't see Karlsson being the teams next most expensive player. Is he really that much greater than his linemates? Signing Marhessault to 5x5 might be the most brilliant act McPhee has done forthis team.
I like your trades, though me personally would love to keep Reaves, for get about the "honey-situation", still belive he brings something special to this team with his personality.
I'm also pretty shure that Glass won't play in the league except from backing up an injury. He'll get a year to mature in the AHL.

But who am I to know really

Look in MTL with KK... they kept him here at 18yo plyaing 3C with an avr of 14min per game... I would do the same with Glass...