Israel can’t hit Iran. Iraq would not let them overfly, and our own forces would be told to engage them.
Saud has expressed interest in letting Israeli jets refuel in the Kingdom, but if they do that the King might face a lot of internal pressure. Still, they are taking a more active role now.
More than likely you will see Saud buying their own nukes, and Israel going open as a nuclear power.
Why couldn’t the Saudis allow Israel to refuel from tankers over the Persian Gulf? Does Israel even have that capacity?
Saudi has already agreed to let Israel fly over their country to take out Iran’s nuke capability in the news I have seen. Israel has no choice but to just that.