My husband came out to work for QP at the end of last century. He was grade 14 and offered 11,000 QR then. Given the current poor exchange rate of 7.1 riyals to £1, you should be looking hard as to whether you would be getting a better deal here than in UK. Days of making a fortune here are long gone: just enjoying the sunshine.
Rumours abound of a potential pay rise of 12%. Unfortunately, your husband would not be eligible for that. Doesn't sound like lots of money to me.
Wonder whether you would have to find your own accommodation till it's available down South. It won't be ready any time soon.
Be interesting to hear what the 'allowances' are. We're still waiting for them to replace the Senior Staff club which was demolished a long time ago. Did they mention that in the job offer, I wonder?
The accommodation they offer primarily is okay: villa in a nice (I hate that word) compound. Rents have now outpaced the housing allowance and then some! No one would get similar housing once they leave the confines of Al Bayan Compound.
Don't let me put you off, though: we love it here regardless.