From your description and his stats, I think he fits closest to the TAGfish profile.  A TAG fish is sort of a TAG preflop and tight passive post flop.  

Preflop: I think we can pretty much assume he's 3 betting 99+ and AJ+ (with the possible exception he may be slow playing AA or KK.  This is a good spot and stack size to flat with AA here).  His most likely hands are broadway hands, pocket pairs, suited connectors and suited Aces.  I can't see his flatting much else as tight as he is, unless you have a totally crappy image here.  

Flop:

Monsters: AA, AK, KK, 88, 55, and 85s

Marginal: 99 – QQ, Kx, AQ, 8x, 33, 44, 66, and 77.  He may peel with all one pair hands BvB to the c-bet.

Draws and air: 76s, random floats.

Notes: Some of these hands are not in his range as often as others, for instance, hands like QQ and AK 3 bet pre.

Turn: 

Monsters: Nothing really changes here, except that he may fire the turn with the second diamond hitting unless he puts you on total air and is hoping to allow you to bluff off on the river.  22 gets promoted to monsters if he peeled one off with a small pair.  

Marginal: check behind for pot control would be typical here so nothing changes.

Draws and air:  I think we can remove the complete air floats here as he misses his spot.  But there is a possibility of a float with two diamonds and he picked up a flush draw and checked behind here for the free card.  

River:

Monsters: AA*, AK* KK*, 88, 55, 22*, 8s5s, potentially 5x if he peeled the c-bet with this.

Marginal: 99, TT, JJ*, QQ*, Kx, 8xs, 33, 44, 66, 77.  The way the hand played out, it is possible he could be betting marginal hands for value on this river.  But I think he checks back the bottom of this range on the river, so in the final analysis, I will assume he checks back the bottom hands in this range, which is more consistent with his profile than trying to get thin value.  (33 – 77).

Draws and air: 76s and backdoor flush draws he picked up on turn.  

Considering the few possibilities for draws and his player profile, I think we can eliminate draws and air from his range for the most part  In my final analysis, I will only add a small % of a bluff possibility.  If we reduce all of the hands with an asterisk 50% we have the following distribution:

Monsters: AA(3), AK(6), KK(1), 88(3), 55(1), 22(3), and 8s5s(1) – for a total of 18 hands in this distribution.

Marginal: 99(6), TT(6), JJ(3), QQ(3), KQ(12), KJ(12), KT(12), J8s(3), T8s(3), 98s(3), 87s(3), and 86s(3) – for a total of 69 hands in this distribution.  (Let's add 5 hands just to account for random bluffs as everybody bluffs and there realistically never a 0% chance of a bluff.

Now we have to ask whether he will fold marginal hands to a raise here and if so how many of them?  And if so, how much do we have to bet.  

We have t95k left behind.  The pot currently has t70,419 and the bet facing us is 27,555.  A small raise may fold out any hand worse than Kx.  Hands like KX or better will at least call and if we are raised we are done.  So in 54 of a total 92 he will probably call or raise.  Now we can pretty safely assume his bluff range to 3b this river is near 0%.  It may happen but the results now may be so small that it is safe to ignore them.  38 of 92 times we can potentially pick up the pot with a small raise.  If we raise to t65k we are betting t65k to win t70k.  We need him to fold 48% of the time and we are not getting this unless he starts folding out Kx.  If he folds all his marginal hands to a small raise, then it is profitable.  But what are you representing?  You checked the turn and checked the river after he checked back the turn.  Good players might sniff this out as a desperation bluff and call with all their marginal hands.  

If we raise to t80k and somehow get hims to fold 1/2 of his Kx range now we are folding out 56 of 92 hands.  We are betting 80k to win 70k so we need 53% FE to break even, and we might be getting 60% here.  If this is a true assumption and you do get this much FE for the 80k bet, then the profit for this move is: t10k.  Small profit.

So now we look to ICM/Stack size considerations.  If you fold, your current stack is t95k.  Still just under 30 BBs and competitive considering stack sizes.  If you win your stack would be t166k, over 50BBs and the second biggest stack at the table.  However, ICM considerations, I have to assume that the chip loss here hurts ICM more than it helps you to win these chips, so making a bluff with a small edge here may not be wrorth the chips at risk.  

I might assume that the chips lost are worth at least 1.5x the value of chips won (see Kill Everyone for Bubble factors for more info in this).  Which would turn this into a cEV positive to a $EV negative move.