Algren ... IMO ... you can live with QR 3000 provided the company provide the full acommodation (not allowance) and transport. I dont know how much you pay for cinema in Dubai, but here cost QR 30 per person. Mobile phone to call is QR 0,75 a mins, and i think QR 0.65 per text message. For food it would be depend what you eat really ... some people . Other think have been discussed many time before, you should use the 'search' function ... i am sure it will come out with tons of answer.
Good luck!