To topic starter:
I answered this question privately to one of my friends. It took me about an hour to do all math and explain where it comes from.
So, first of all I doubt someone will spend that much time explaining things to a stranger. Second - for number of reasons this is confidential information. As you probably noticed there is no much money data on any public forum.
The only encouraging message: money is good here. Even on 330. It's a little bit down at the moment ahead of receiving new aircraft and wil be back to normal as soon as things stabilize. Of course, if you have e chance, go to 777. But, still 330 is good enough. Generally money is better then anywhere in the Gulf. And you will save most of them. This is the reason people come to Saudi Arabia. Otherwise they would all go to UAE.