Deep in tourney, do I take on another big stack??

[grunter]

Hi all,

Titan 25k guaranteed this morning. 13 players remaining. Average stack 36k. I am chip leader with 74k.

Already in the money, approx payouts from here as follows:
11-13th - 250
10th - 375
9th - 500
8th - 750
7th - 1000
6th - 1250
5th- 1700
4th - 2000
3rd - 2500
2nd - 4800
1st - 7000

For a while prior I had been pushing the table around a little, picking up the blinds without having to show down a hand.

Blinds are 1200/2400 I'm on the button (6 handed) and find 8c9c. 3 folds to me and I raise to 8000. Small blind folds and big blind (who had been playing very similar style to mine - although pushing often post-flop - and has 63k and third in chips) calls.

Flop : Qh 9c 4d

Opponent bets out 10000 and I call. (First question, Do I call here, fold or raise).

Turn: 8s

Opponent pushes all-in.

What is my play here.

I figure if i call and win I have over a quarter of all chips and can probably coast to the final few at bare minimum. If I call and lose I am in trouble with 11k and 3600 in blinds coming soon.
If i fold. I still have in excess of the average chip stack with a great shot at final table.

Views on this would be great.