Villian is a bad TAG, and a small sample loser. He'd been pretty aggro postflop, but not spewtard like.

Poker Stars, $3.29 Buy-in (15/30 blinds) No Limit Hold'em Tournament, 2 Players
Poker Tools Powered By Holdem Manager - The Ultimate Poker Software Suite. View Hand #10269032

BB: 810 (27 bb)
Hero (SB): 2,190 (73 bb)

Preflop: Hero is SB with 3 5
Hero completes, BB checks

Flop: (60) 3 4 2 (2 players)
BB checks, Hero bets 30, BB raises to 90, Hero calls 60

Turn: (240) A (2 players)
BB bets 180, Hero calls 180

River: (600) 5 (2 players)
BB bets 510 and is all-in, Hero ?

I'm not sure how to work out my odds when calling for a chop.

OTT I called so he'd jam rivers with bluffs (I figured I've just called on 4 to a straight, I look like I'm holding 4x or smth, and he'll take advantage of the board and ship it). However, OTR I think most of the time he'd just check anything but a 6. I dunno, I feel like I should be calling but I also don't think I'm that good, I need to WIN 31% of the time to be profitable, not sure how often that is when I'm only calling for a chop.

Would love to hear your thoughts.

i think you should jam the turn, people arent c/r this board as a bluff very often at all, when he bet that size on the turn its pretty committing so ill just ship it for value

river is ehh, i dont see too many 6x in his range that plays this way, so i prob call in game