They've already turned down Marleau.
I guess if you keep Forbort, Hutton, and Toffoli for over $10m on the cap, all 3 somehow getting raises, you can make anything work. The big issue is, nobody ever wants those guys back. At least 2 of the 3 anyway. Nobody cares about Hutton. Walker at $2m? Plus you haven't said how you plan on getting rid of Carter, Kovalchuk, and Quick.
Again, they didn't take Marleau because the Leafs wouldn't take Carter back to make the money closer, and you've got them paying Forbort $3m to be the 7th D? I'm going to guess that won't happen. If they bring him back at more money, he's playing over Bjornfot and/or Anderson.