i dunno...
first, i was mainly talking about the flop.
as for the turn:
flush - you have outs unless he has the
better straight - do you really think the nut straight decides to push into an aggressor on a high paired flush board?
boat - in plhe i might see a bet here, but in nlhe? in an sng? i realize that most of these players are bad, but you're much more likely to be slowplayed than open-pushed. don't expect thinking like "i'll push since there's no way he'll put me on it".
i would say that it is possible that some guy shot his load when he made his boat, but i think you'll statistically be more likley to run into a semi-bluff or bluff by a hand that beats you. if you can't make this call precisely to take the chips from a blufftard, then i think you should not play this hand pf at this point in the tourney (and there's nothing wrong with that).