Zoom CO/SB SRP barrels with BDE, 3td barrel?

xb turn. We have equity and cannot call a raise.
As played, xb river.

I would rather xb and take the free card with our 8 outer and give up if no hit. Villain will keep on calling with flush draws, Kx and maybe some other high pocket pairs so there is not that much fold equity I guess.

I also do not think we have FE here. In effect, I would xb here as well.

Flop: Don't c-bet. It would be highly questionable heads up. Three-ways it is burning money.

Turn: This card changes nothing from the perspective of the SB. He'll most likely call again -> little FE. Check-back.

River: If you are trying to make a K fold, then you are on your own. Some of his flush draws (A♥: X:heart: ) just hit. IF I chose to bluff here, I'd go for a 50% size. That's hard enough for a K to call. If he the calls with a K, I'd not have second thoughts about sizing. I'd instead take a note and mark SB as an agreeable fellow that I enjoy playing poker with (and also why).