1. id raise pot on the river and fold to a raise/shove.

2. i'd fire the turn and try to get it in on the river.

3. i like it

4. im firing this turn with 77s+ and Ax. if called id bet/fold the river with my Ax hands and usually c/f my pairs regardless of the river card. taking a passive turn line would make sense versus someone who bluffs too much/too little on the turn/river when checked to.

5. make sure to follow up with a river bet. if villain seems like a poor hand reader i'd still bluff the board pairing river cards.