*beginner stud player here -- just my thoughts -- probably wrong
*
Since we've got a hand that's going high vs a likely low hand and surely high hand, seems like we'd want to keep that other worse high hand in to try to win half of his money. Aren't we concerned the raise on 4th would push the other high hand out of the pot?
Seat 4's check on 5th makes me think he doesn't have a low, maybe he's paired his 8? Unless he's concerned his 87lo is a dog to your 76lo draw. I'm definitely betting when checked to.
On 6th, again, do we play better HU or multiway? At this point having not improved beyond aces but with a flush draw, are we concerned about protecting our high equity? Maybe even a raise would get seat 2 to fold bad 2 pair (I'd think unlikely if he's a loose player).
On 7th, you probably don't get any lows to fold but you're getting called by Khi flushes , straights, probably trips hoping you're playing a rivered low this way. If he had trips on 5th, why didn't he bet? So you're worried that he burried kings that made trips on 6th. Would burried kings raise on 3rd? They might even 3bet on 6th. Then if he does have trips, lots of his 4s, 7s, 8s are dead. I think too nitty to check back.