If you will take normal car like Camry toyota ,Tida,sunny it will be around 700 QR , Mobiles 500QR for you and your wife , Fuel = 300 QR / Gas = 200QR , internet and telephone = 234 QR / Tv = 1500 for the first time to buy / Food = 2000QR

700
500
300
200
234

= you can live with 4000QR