[Wario]

I'd cap the flop, your hand might still be best and you've got a lot of people calling along. It he leads the turn call down.

I prefer jamming the flop over waiting for the turn as it might get Kx and Ax to fold. You're already in a good position to protect your hand and you also have a weak backdoor flush draw.

Your line isn't bad either, betting the turn after he checks to you is standard. Giving a free card with your hand in a 16BB pot would be terrible.

Standard river call in a huge pot.