Is QR offering you that salary, or do you wanna ask them for that much?

As far as family allowance goes, depending on your grade, you will get 75% or 100% rebate on schooling for the kinds upto a certain amount. Besides, you get Basic, Housing, Transport, Utilities.

It is safe for your wife to travel around, it ain't like KSA where women have to cover up.

I'm sure KSA licence will require a mere formality to transfer it.

Good Luck!