Have the folllowing comments/observations:
1. Am not familiar with hotels salaray scales.
2. Sensed the tone of your under-estimating your experience. I know a lady who was running a small restaurant, then retired to take care of her kids, after few years got a job in one of the 5 star hotels. She did perfect job and lifted the business of the restaurant she was cheffing.
3. Understand that you are looking for a decent living for yourself and your 2 kids. Unfortunately the basic salary can very hardly meet your needs according to the anticipated monthly expenses as follows:

Schooling: 5000 QRs
Car: 1500 - 2500
Maid/Nanny: 1000 - 1500
Elec/Water: 500
Phone/Internet: 250 not including GSM

Let aside food, entertainment, clothing, international calls.

You have to take the following points into consideration:

1. House: is it bachelor status or married. Bachelor means you will be having shared accommodation. God knows who will be your room-mate,
2. If utility bills are covered by the hotel
3. Do they provide transportation from/to house/hotel?
4. Does your medical insurance provide 100% coverage and does it include dental?

Wish I did not miss some vital issues and hope I did not add to your confusion.

PM me if you have any specific questions