Very ugly spot w/ set vs. THE__D__RY in 50r

[cappla011]

I usually don't post hands, but I wasn't sure what to do in this one.

Villain is THE__D__RY in the 50r. It is about ten minutes before the first break, but shove-and-pray play has stopped, and everyone has been playing pretty standard, but still aggressive.

Poker Stars, $50 + $5 NL Hold'em Tournament, 50/100 Blinds, 9 Players
LeggoPoker.com - Hand History Converter

CO: 4,820
BTN: 8,295
SB: 4,915
BB: 2,810
Hero (UTG): 6,455
UTG+1: 7,230
UTG+2: 2,680
MP1: 8,805
MP2: 6,875

Pre-Flop: (150) 4[img]/images/graemlins/diamond.gif[/img] 4[img]/images/graemlins/spade.gif[/img] dealt to Hero (UTG)
Hero calls 100, UTG+1 folds, <font color="red">UTG+2 raises to 300</font>, MP1 calls 300, MP2 calls 300, CO calls 300, BTN calls 300, SB calls 250, BB calls 200, Hero calls 200

Flop: (2,400) 4[img]/images/graemlins/heart.gif[/img] 5[img]/images/graemlins/heart.gif[/img] J[img]/images/graemlins/heart.gif[/img] (8 Players)
SB checks, BB checks, <font color="red">Hero bets 900</font>, UTG+2 folds, <font color="red">MP1 raises to 1,800</font>, 5 folds, <font color="red">Hero ????</font>


Is this a standard shove? I can't see myself beating much of anything, but can I fold a set in the rebuy stage? Does he ever have just the Ah here? I feel I should be leading out here, but was the bet way too weak?

Thoughts are appreciated, thanks.