Hey not sure on the allowance. Mine was 1000 AED / fortnight, but that was over 2 years ago.You really won't spend money during the week because you are training but if you want to eat out / have a few drinks on the weekend then I would make sure I had some cash. Take advantage of the generous 4 bottle allowance from duty free when you come in to the country so you can have a few drinks at home before you go out so you won't spend so much.
Also keep in mind your daily flying pay and allowances are paid a month in arrears so your first pay will be just your base.
They do train a morning and an afternoon batch from what I hear. Not sure if that is for the whole training or just a couple of weeks of it.