Driedger would be an interesting target, Personally I think that he is a rebound machine but he could probably be had for a decent price

Wood is unlikely to be non-tendered, based on what Fitzgerald has said so far this off-season.

Would count on the poor season being because of seattle's defence as he was the best goalie out of the three

His qualifying offer is 3.5 mil. Devils likely pay him 3 and he accepts

No issues with your acquisitions, they could work as well as anyone else's guess, but I do think a 2nd for Kerffoot might be a bit high.
I do however have to comment on your roster placements. Pontus Holmberg replacing Kampf on 3rd line doesn't make sense. Kampf is a beast of a 3rd liner. If the year started that way Kampf would be back in that position in 5 games.
I am also well off Nick Robertson. He's not an NHL'er yet and I don't see him being a consistent player for this Leafs team. He should be used for a trade. Leafs have placed too much value on this guy and I think it's time to move on.

It's not going to cost that much to dump Mrazek my guy. His buy-out is only 1mil, and according to historic values that's only worth a 3rd at most