We'll offer you Gibson, take it or leave it.
Jokes aside, I am still fairly certain Gibson could become a bonafide number 1 goalie again in a different market and with an actually capable defense in front of him.
Maybe something around Gibson @30% retained plus a B-level prospect like Sidorov could be considered fair value.
Boston gets a proven goalie with a somewhat high probability of bouncing back and rejuvenating his career as well as a prospect that pots goals en masse in juniors but is completely unproven amongst men.
Anaheim gets a great goalie, who can easily mentor Dostal to take over in a few years and some redemption for the lopsided mess that was the Lindholm deal.