Ullmark is the type of goalie that teams will create capspace for. If Ullmark just cares about the $ amount, there's plenty of teams that need surefire goaltending that he'd be an upgrade on. Trading away Ullmark won't reduce his value considering Swayman is an elite goalie. Ullmark's sample size in the post season isn't he largest either.
Utah, Buffalo, Detroit, Calgary, CBJ, etc., and there's more teams that would shell out the money because we still have GMs in the league that are running teams in win now mode and won't have to worry about the ramifications of signing Ullmark to a mammoth contract.
Heck, if Ullmark puts up a Vezina calibre season, it's in Ottawa's best interests to sign him to that deal because he'd provide stability in a position we've been missing in several years. I really hope he signs for a deal less than $8 million in Ottawa, just saying I'm not surprised considering the cap is going up.