$1/$3 slow played AA against strong line

Don't have great reads on villain, I haven't played with him before and I'm on my second or third orbit at the table. Game is $1/$3 NLH but we play a PLO hand once per orbit and I did see him bet the K high flush hard on the river on a 88853 board so I'm thinking he's capable of some bad play post flop. He's loose preflop and raising a lot, probably playing 40/20 or something like that.

Effective stacks are $650ish

I'm the button in this hand and I've button straddled for $6
SB folds
Villain complete the $6
Folds to me on the button
I look down at A ♠ A ♣ and raise to $26
Villain raises to $135
I call

SPR is going to be 2ish with his reraise so I didn't see a reason to 4b. Plus 4bs are rare in this game (as are 3bs, at least less common than they should be) and I expect to fold most everything out if I do it. JJ+ might get stuck, everything else goes away.

Flop ($271) J ♠ T ♦ 6 ♠

Villain checks
I bet $85
Villain calls

Turn ($441) Q ♥

Villain bets $125
I call

River ($951) 5 ♠

Villain shoves for $300
Hero ???

On one hand I'm getting 4:1 and the SPR was 2ish on the flop, tough for me to find a fold here. But, what am I ever beating? Could see him check calling the flop with any broadways that he 3b with, but all I'm beating at this point is AQ (which I block) and KQ. Don't know. 15 combos of those if I really think he shoves them. This whole post is probably results oriented (SPOILER!), maybe this was an easy spot.