They wouldn't even take 98% promised by Barak.
Elkin, the Deputy foreign Minister of Israel isn't as sure as you are that the Arabs won't take the deal.
But Anyway, here's what Elkin said, "I say that if the Palestinians, G-d forbid, will become flexible and go for it, we will get the worst agreement possible. Upon receiving 86% of the land, they will establish a terrorist state," said Elkin.