That would mean:
1. That the Saudi option would open up another set of delivery systems.
2. That since Saudi is scared stiff, that Saudi would also be too scared to oppose Iran, especially if they thought Israel had other options.
For (1) yes I would expect Israel could carry what it needed into Saudi Arabia in multiple trips if necessary before jumping on Iran
For (2) Saudi Arabia has jet fighters, but not the capacity to wipe out all Iran’s nuke operations. It would need Israel’s help.