My Squeeze got called. How do I proceed?

[Hoop Addict]

In the SB with A9o, 6 handed. Blinds are 2K/4K no antes.

Stacks of those in the hand:

Me (SB) ~125K
UTG - ~95K
Button - ~105K

UTG is a lagtard & min-raises to 8K. Folds to button who flat calls. I bump it to 30K assuming the lagtard is just being that & having seen the button call UTG's raises before & steal pots from him postflop.

UTG flatcalls my raise & button folds.

Flop is K 8 4 rainbow.

How do I proceed? Do I fire at the flop? If so, how much for? I've got about ~95K left behind at this point & UTG has ~65K.

Also - 1) is a squeeze an acceptable play here, considering if I get called I'll be playing it OOP & 2) was 30K the correct amount to squeeze with there?