Dahlin has this year and next. Cozens will get paid, but Tage money. Both of those and Mule's kick in next season. Power will need to be signed the year after Dahlin.
The Sabres will have enough to sign KO for next season at 2 or 2.5 and maybe even the year after that. The Sabres may need to decide about Girgs, but I think he will be back for next season too. At about 2.5.