Flopped nuts in Party rebuy, 4 players

Ok here's the problem. I want to extract the maximum amount of chips, but at the same time, if I go all-in I can rebuy for another 1000 chips thanks to Party'd rebuy bug. Hard to discern reads from players during the rebuy period, so assume no reads. So my questions are: Do you like the check on the flop and what do I do now. I didn't really want to reraise the flop because everyone had such deep stacks and I didn't want to have to rebuy back to my chipstack.


Party Poker No-Limit Hold'em Tourney, Big Blind is t30 (10 handed) FTR converter on zerodivide.cx

BB (t7910)
UTG (t1000)
UTG+1 (t4320)
UTG+2 (t1250)
MP1 (t6000)
MP2 (t5170)
MP3 (t5940)
CO (t4455)
Button (t4690)
Hero (t4930)

Preflop: Hero is SB with A[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">UTG+1 raises to t200</font>, <font color="#666666">5 folds</font>, Button calls t200, Hero calls t185, BB calls t170.

Flop: (t800) J[img]/images/graemlins/club.gif[/img], Q[img]/images/graemlins/spade.gif[/img], T[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
Hero checks, BB checks, <font color="#CC3333">UTG+1 bets t300</font>, Button calls t300, Hero?