Good Play Or Bad Play?

[Kronesley 0]

Hand from a live tourney last night, 5 handed. Tourney is deep stackVillain is fairly decent player, and has been quite TAGHero has been in lots of pots and showed a few bluffs where continuation bets on flop and turn had taken it downBlinds are 150/300Hero UTG (22000)Villain (15000)Hero has A9 hearts raises to 800, folds round to Villain in BB who calls. (Pot is 1950) Flop is 88J with one heart. Villain bets out 1500, Hero calls. (Pot is 4950)Turn is a black 6. Villain bets 1500, Hero makes it 4000. (Pot is 12950)River is a 2. No flushes on board. Villain checks, Hero bets out 5000.I called the flop hoping to steal on the turn, when he called I was a little worried but he pretty much insta checked the river to me and I felt he was quite weak so I thought I would fire out a bet that looked like it wanted a call, risking less of my stack in the process.Thoughts on all streets would be appreciated.

[Sheiky 0]

If you're going to bluff the river, i think you have to bet a lot more than 5k.The problem with bluffs that look like they want a call is that they're so small that they generaly get one.