Aces raised on the river

$1/$2 at Mohegan Sun on a Saturday afternoon.

Hero is a 31 yo white guy. Have been absolutely crushing the last few hours and I have a $1500 stack in a $300 cap game. Should have an exceptionally clean TAG image at this point, though I was stuck early in the session after a spewy bluff or two.

Villain is a younger white guy. New to the table. He is at the casino for the country music concert. He seems to be playing solid but he’s only been at the table for 20 minutes and I don't think I've seen him show down a hand. $325 stack

SB is an extremely loose fishy young white guy. At one point he said that he didn’t want to play any pots against me without a premium, but it seems like he will play any two cards more or less.

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UTG limps
Hero raises AdAs to $12 from UTG1
V calls UTG2
SB calls
BB + UTG limper fold

FLOP: Kd 6d 8c (Pot: $36)

SB checks
Hero bets $15
V calls
SB folds

TURN: Kd6d8c 6s (Pot: $66)

Hero bets $50
V calls

RIVER: Kd6d8c 6s Th (Pot: $166)

Hero bets $100
Villain jams for ~$250

Hero?

Is this a standard bet-fold spot on the river? That was my plan when I bet $100, but thinking about it, Villain doesn't have that many better hands (88 that slowplayed flop, a couple combos of 6x which slowplayed turn, maybe 97dd). This would be a crazy spot to bluff though. There are also two combos of KTs available as well, but that seems like a pretty thin river jam.

Would welcome feedback on prior streets as well. Thought about overbetting the turn, which would set up for a river jam. 6 on the turn seems like a great card for me, though obviously there are some combos of 6x that villain could have.