$11 K9o Button Lvl 6- autopush?

Seems correct, but wanted to hear from the experts. I have two reservations that made me wonder about this hand.
- still 6 players
- Big stack#2 in BB likely to call w/any 2

Are either of these reasons (or something I'm not thinking of) enough not to push this? Thanks!

NL Texas Hold'em $10 Buy-in + $1 Entry Fee
Level:6 Blinds(100/200)
Total number of players : 6
Hero: ( $870 )
SB: ( $830 )
BB: ( $2035 )
UTG: ( $1670 )
MP: ( $2145 )
CO: ( $450 )
Level:6
Blinds(100/200)

Dealt to Hero on button [ K[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/heart.gif[/img] ]
3 folds.

Hero ?