Arizona has been known to take on higher expense players (such as Ghost) for picks, or potentially in this case prospects. Right now it seems they are all about losing so they can have the best odds possible to secure Bedard. Having researched Vejmelka a bit more, to me, he is a clear upgrade over what we have currently. I do think, however, Cal has just as much upside if he can become more consistent.
Additionally, looking at the 2023 draft I don't see a lot in the way of goaltenders that stand out and some that do are already committed to college next year so it appears the only way the Kings have a chance at upgrading is through a trade of free agency. Out of those available in FA, Jarry, Talbot and Varlamov are probably the best options with Jarry almost assuredly being resigned by Pittsburgh.
It's pretty slim pickings...