http://www.propokertools.com/simulat...tionEditor.jsp
Simply given that you've got so much [censored] in trouble here, I think this comes down to your estimation of how often he has aces here. If there's a > 10% chance he makes this play with anything less than aces, I think a shove is fine here. Any less and you can call. In any case you have 40% equity in the sidepot here against a random AAxx hand, so it's not all bad, though the other shortstack in there confuses things for the main pot.
Hand Pot equity Wins Ties
kcqckdqd 33.63% 161,467 1,240
AA** 43.03% 202,813 9,184
20% 23.35% 107,411 10,253
Hand Pot equity Wins Ties
kcqckdqd 40.15% 240,767 230
AA** 59.85% 359,003 230