What hands fit SB's line?
He's got to have a very strong hand to call your very obvious limp-raise, as he's got very small implied odds
after your $60 reraise. He's got to have a big pair or AK. Maybe
AQ but I doubt it, knowing you're so tight. I think QQ is a very real possibility - too strong to fold, but not strong enough to push your limp-raise. Pro's not taking this line with KK+; he wouldn't want to invite both the button and BB in.
Not sure what the button's got with his so far passive play. I'm thinking mid-high pair, or some weaker ace-face cards.
Anyways, you've a) got too big of a pot to think about backing off now, and b) have a pretty small stack compared to the pot; I'd just shove em in and hope we haven't been outdrawn.