treading softly with AKs

1/3 NLHE 9 handed

I'm playing 'to have fun' tonight and so not playing my best game, trying to drive action and watch how people respond, so my image isnt so good, this hand is an antipode to that but I need to practice playing more defensively so I try to here.

V - nitty guy Ive never seen before, seems straightforward post. Vpip about 10-15%. Widest open maybe QJs in LP. Always playing premium and using a lot of aggression post and large sizes. I opened 99 to 30 over a sea of limps from SB earlier and he limp called MP. HU to K77r I x/call one street, turn a T he barrels and I fold.

---- V is eff stack with 620$ -----

Hero sees A♦ K♦ and opens 10 UTG, V 3-bets to 30 (first 3-bet in an hour), Hero just calls OOP.

Flop 60 - Q♦ J♠ 6♦

H x, V bets 70, H tank calls

Turn 200 - A♠

H x, V bets 200, Hero? V has 320$ back.