Sorry man I'm not really sure, I just got back into studying the game again and I thought this was a really interesting spot to think about given our hand strength and what I think are pretty relevant blockers in the hand.
I think we don't achieve much raising turn, if he shoves or calls we're in a really bad spot, but I also think if you do ever raise with a king high flush on turn in some spots, you would want to hold an ace, so this would be one of those perfect hands to put in that range cause you also have equity in the pot if he does come over the top.
My question "do we turn our hand into a bluff if he barrels river" was dumb cause this is also to me a perfect hand to call down with, but not to check back on the river with if that makes sense (since he will probably be turn barreling some sets)
Probably none of this makes sense, but I think I came to the conclusion that you can't really do anything wrong or get too out of line with this hand other than by folding, lol.