When looking at and evaluating hands, I do not take OP's read in a vacuum, nor do I take them as being absolutely true. The information provided does not strongly enough indicate significant shifts in the underlying assumptions for me to override the basic assumptions of what a 4/8 player is like.

For example, assuming that this player can fold a pair of aces is significantly aberrant for 4/8 players. I think this player will call with any ace on the river.

For another example:

This does not tell me that villain will therefore be prone to a particularly high frequency for river bluffs. Nor that he will not raise this flop with top pair and a weaker kicker, especially if he has some sort of backdoor draw to go with it.

So none of the information provided gives me enough data for me to switch from the straight-forward play of just value betting my TPTK hand into a player that has not shown enough strength for me to believe that he has me beat a lot.

I would consider switching from a straight-forward value bet to a "let's try to get him to bluff" to be a significant over-adjustment. Under most realistic scenarios (which doesn't include the hand ranges you gave, as I don't think it's very realistic), value betting is the best play by far. This is true even when adjusting for the information from OP. You really need him to be play significantly outside the norm before checking to induce is better than betting for value.

Try to avoid interstitial thoughts in the post, it makes it hard to read.

AP I like a bet 3 bet on the flop. You have a strong enough hand to do it with.

Turn clear bet. Good that you did.

River, it depends. It looks like you have a big hand (big ace or better), which should be a deterrent to him calling since it's likely tough to find a ton of bluffs in your perceived range (most people don't raise KJs and go bananas with a flush draw). OTOH the pot is big, which incentivizes him to call lighter and bluff less. Generally it's worked out fine for me to bet here absent other reads, and betting is almost certainly the superior play.

Also note that this doesn't complete T9, but 65 it does. He's more likely to try and free card the former than the latter. So I actually think this card improved him less often (and sometimes it does complete a hand like T9 where he's compelled to call and hope you have a busted FD somehow).

I think using words like "interstitial" make posts hard to read. I looked it up and still don't know what it means. His post looks fine to me as written.