Preflop is def NOT standard, its very bad.

As played I think you can exploite villain on the turn and fold yes.

I like the preflop play, fold or 3bet is great,call opp with A7o is really -ev here,but usually I will fold preflop directly.

Flop bet is a little smallish,$3-3.5 will be great. and I will also call turn V's raise, cuz you bet a little again make you have a weak Ax usually, V will raise hero ip with big FD or strong Ax. if there is no dangerous cards like any heart,Q,K, I will call river usually.

I really dislike the preflop 3bet. IMO it's is pretty much a hand that should only be 3bet oop when you have a read that the opener folds too much to 3bets. In this case without any such read and pretty deep we really shouldn't expect to get many folds at all preflop which means that we are going to go to a flop a high % of the time, oop, with lots of money to play behind with a hand which is very tough to play postflop. Not a good situation to put yourself in. So I think you can probably defend this and do slightly better than folding long term or you can fold and that is fine as well, but 3betting this without a read on villain's responses to 3bets just puts yourself in a bad situation unnecessarily.

As played preflop I think postflop is fine except you should probably be sizing a bit bigger with your range on both flop and turn when this deep.

Pre is probably a money loser. Post is probably okayish. I feel like every part of this hand has max exploitation written all over it. No aspect of this hand fits very well into a balanced strategy. If you are 3-betting Axo and everything better, you are going to be 3-betting more often than the CO is opening. If you are bet/folding the turn with two pair, you are going bet folding 85% of the time.  I can't recommend your course of action.