Bad time for a stop and go?

[TehVader]

10k guaranteed, $3R 30ish left.

Villain has been pretty active and have called all ins with some marginal holdings after he's open-raised. Should I've just shoved or was this a good spot for a stop and go? I don't think I'm good at recognizing situations where it's better to stop and go instead of just shoving.

PokerStars No-Limit Hold'em Tourney, Big Blind is t30000 (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

saw flop|<font color="#C00000">saw showdown</font>

Button (t632615)
SB (t218922)
<font color="#C00000">Hero (t435522)</font>
UTG (t235855)
UTG+1 (t419870)
MP1 (t569157)
MP2 (t194099)
<font color="#C00000">CO (t1036497)</font>

Preflop: Hero is BB with A[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">4 folds</font>, <font color="#CC3333">CO raises to t90000</font>, <font color="#666666">2 folds</font>, Hero calls t60000.

Flop: (t160500) 2[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets t344022 (All-In)</font>, CO calls t344022.

Turn: (t848544) Q[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players, 1 all-in)</font>

River: (t848544) 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players, 1 all-in)</font>

Final Pot: t848544