Do players iso-raise short stacks at PP20? i.e., should I r-r w KQo?

[ellipse_87]

What is UTG+1's range, assuming he's a typical Party 20+2 player, and what is Hero's best move?

PL Texas Hold'em $20 Buy-in + $2 Entry Fee
HERO is the button
Total number of players : 6
Seat 3: CO ( $612 )
Seat 4: HERO ( $2086 )
Seat 5: SB ( $1701 )
Seat 6: BB ( $1379 )
Seat 7: UTG ( $350 )
Seat 10: UTG+1 ( $1872 )
Blinds(100/200)
** Dealing down cards **
Dealt to HERO [ Qh Ks ]
UTG is all-In [350]
UTG+1 raises [700].
CO folds.
HERO ???