[betgo]

Even if his calling range is wide, he still has to fold about half his hands. If he wants to call with junk, that's OK with you too.

Half the time, you gain 1.5xBB when he folds. So you need to lose less than 1.5xBB the other half of the time. With pot odds, you need to have a 38% chance if called. It seems like is is EV+, particularly when compared with losing .5xBB by folding (If you complete, villain probably pushes with a hand he would call a push with. What do you do then?). Also, he may call somewhat less than half the time.

If there was ante or the BB was tight, this would be a real easy push.

You can push with a suited gapper from earlier position, as the likelihood of being called does not go up that much, and you don't mind too much being called by a strong hand like AK or AQ.

While you can wait for a couple of people to bust, you are better off gambling for the big money. This is a classic gambling play, as there is a good chance you will be called and it will be close to a toss up. Unfortunately, you lost the gamble. If you had won the hand and taken 2nd in the tournament, you probably would not have posted this.