Markstrom will be, hands down, our most expensive piece. We can resign him and make room for it, or we can walk away, neither is really a gain for cap.
If we choose to roll with Demko+Domingue(or whoever), we don't need as much cap space. 20.5 million (Ferland is on LTIR again...) to resign Toffoli, Tanev, Virtanen, Stecher, Gaudette, Motte, MacEwen, Domingue and Fantenberg (or replacements) before we move players like Rathbone into the minors (or who ever we cut to make room for him). Even with our overdue bonuses to pay, the need to dump cap goes way down if Markstrom is either walked away from, or if we move Demko+Eriksson to make room for Markstroms new contract.
If we go with Demko, we no longer need to dump cap in anywhere near the same urgent fashion as we would with Markstrom staying.