Yeah I think this is a fine spot and pretty easy spot. I like the flop check back as if we get check raised then it's not nice with our draw. But by the turn it's pretty apparent you have an orphan pot.

I don't think we need to lead this big at all and I actually don't think this is a good spot to bluff as many villains will take pot control lines on flop with Qx no heart.

It can't be terrible because people will still c bet their strong hands mostly. That said I think there's enough pot controlling going on at these stakes on monotone boards that your fold equity won't be as much as you think.

If you're going to go for it I think you're half committing to bluffing the river.

Hmm close one for me. I think multiway I'd not go for it as Qx no heart and some better made hands even from CO could check back flop.

If you do though I think I'd go smaller. You are selling the story that you flopped huge, checked it to check raise and are now going for value. If you had that would you really go close to pot? I reckon smaller bet would achieve the same result and would make a river barrel cheaper if needed.