so at least you have an idea of living in this region.

As to the 1200 USD with only food in your account, you will survive. That's approx 4,400 QAR. I would presume that you are also entitled to OT pay.

What is Gulfcraft company?

As to the other expenses, almost 20K in pesos I would presume it's a agency fee. Other charge one month pay. You should verify all those charges there before you ever proceed.