I thought it might be nice to see how much equity you need to call according to the ICM since there is an unusual feature, the huge stack with 373k chips, almost 40% of the chips in play. Here are the results from my program ICM Explorer for a few prize structures.
PokerStars 180:
Fold: 126000 chips, 0.1221
Win: 214000 chips, 0.1624
Lose: 58000 chips, 0.0819
Tie: 136000 chips, 0.1271
Equity needed: 49.91%
Chip odds: 43.59%
Risk premium: 6.32%
PokerStars 90:
Fold: 126000 chips, 0.1245
Win: 214000 chips, 0.1612
Lose: 58000 chips, 0.0872
Tie: 136000 chips, 0.1292
Equity needed: 50.51%
Chip odds: 43.59%
Risk premium: 6.92%
Full Tilt 90:
Fold: 126000 chips, 0.1363
Win: 214000 chips, 0.1772
Lose: 58000 chips, 0.0935
Tie: 136000 chips, 0.1415
Equity needed: 51.12%
Chip odds: 43.59%
Risk premium: 7.53%
PokerStars 45:
Fold: 126000 chips, 0.1434
Win: 214000 chips, 0.1865
Lose: 58000 chips, 0.0947
Tie: 136000 chips, 0.149
Equity needed: 53.07%
Chip odds: 43.59%
Risk premium: 9.48%
Full Tilt 45:
Fold: 126000 chips, 0.1457
Win: 214000 chips, 0.2034
Lose: 58000 chips, 0.0854
Tie: 136000 chips, 0.1531
Equity needed: 51.12%
Chip odds: 43.59%
Risk premium: 7.53%
These all ignore the possibility that the BB would call if you fold, or would overcall if you call. Both possibilities make calling worse than folding, so you may need a few percent more than the above figures to make calling right. Nevertheless, the figures indicate that you don't need a hand much better than the BTN's range to call.