Sit-n-gp, big hand, expecting multiple callers-go all in?

[Poker Clif]

How should I look at the following situation: Level one of a microlimit sit-n-go, and it's obvious from the first hand that most of the table is looking for a situation to get their money in. Hand number three, I'm on the button with KK. By the time it gets to me, only one player has folded, and it's 10 big blinds to me. If I go all in, I think I might get called with as little as any pair, Ax, any two high cards, and maybe even Kx, Qx, or other hands. I think it's probzbly about a 50% situation for me, but it's been too few hands to get any real reads to make a good estimate.

If I win of course, I've tripled up or more, and I'm pretty much a lock to cash, and a decent chance to win the SNG. If I'm lose, I'm out in 5 minutes--in hourly rate terms, that's pretty bad.

Comments please?