AKo, 5+.50 Rebuy

[Wideout88]

PokerStars No-Limit Hold'em Tourney, Big Blind is t200 (9 handed) converter

Button (t11696)
SB (t10109)
BB (t8261)
Hero (t17435)
UTG+1 (t3045)
MP1 (t6560)
MP2 (t7183)
MP3 (t3810)
CO (t10398)

Preflop: Hero is UTG with K[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/heart.gif[/img].
<font color="#CC3333">Hero raises to t600</font>, <font color="#666666">2 folds</font>, <font color="#CC3333">MP2 raises to t7158</font>, <font color="#666666">5 folds</font>, Hero ...

For this hand, Once he pushes, I know that he most likely has a PP lower than Ks, During the rebuy period he was going out of control and since it ended, hes slowed down a little but has still made a few of these huge reraises, and open pushes, he seems to like to get his money in before the flop, but ive never seen him show down one of these big overbets with AA, KK, QQ or JJ. Is this a spot I should be taking the flip in? I have the chip lead at my table and if I lose this hand I'll still be with the avg stacks, so I dont think it hurts me too much, however, since AK gets most of its power from fold equity which i have none and since blinds go up pretty fast from here, should I wait for a better spot than this. And finally, is this just a call that resides completley on whether he does this with AQ or not?