Bet This River?

6-max limit holdem, I'm the button with AcTc.

Terrible Guy limps in.
Folds to a fairly New Guy (no read) who raises.
Normally, I don't cold call unless I'm on the button with a hand that plays well in a multi-way pot. I have all the conditions here, so I call.
Both blinds fold and Terrible Guy calls.
Pot size: 7 small bets

Flop is: Td 6d 5c

Checks to New Guy who bets.
I raise.
Terrible Guy calls, New Guy calls.
Pot size: 6.5 big bets

Turn is: Ah

Checks to New Guy who bets.
I raise.
Terrible Guy calls, New Guy calls. My reads at this point are diamond draw for Terrible Guy and Ace-paint for New Guy.
Pot size: 12.5 big bets

River is: Kc

Checks to me. I have to be better than Terrible Guy; the best he could have is Kd5d for a worse two pair than me. I feel like he is bad enough to call with just the Kd. I will get a call out of CO with AJ/AQ and either a call or a raise with AK (which has me beat). So this looks like a value bet to me but I just want to be sure.