I have an opportunity in CEBU, a job offer @ 4000 USD /month

Hi all,

My name is Youssef, living in Tunisia, I am married and have 1 baby boy (3 years old) and shortly a little girl will join our world  .
I am new on the forum and I need help.
I received a job offer in CEBU and the salary is $4,000  per month, I would like to know is it enough to live in CEBU knowing that I will move with my wife and 2 children (3 years old and a my wife will give birth in 3 month ).
It's not my first move (France, UK, Ireland, and currently Tunis) but it will be the first in ASIA, I came 2 times in CEBU for work and I had time to visit the city and the island, I really enjoyed it, met with nice people so when the opportunity arrived I was happy, excited and know need to make the right decision for my family and myself.
I have been warned about the price for renting, furniture, food when you are an expat but this is something I already faced in other country.
I wan to know about cars, I am able to buy one? school for my child knowing that we speak French, English, Arabic  (+ Spanish, Italian for my wife) the 4 of us and I would like them to be able to continue in this way.
The company will pay for a medical care, but I need your advice on this too.

In fact all advice for a "perfect" move will be really appreciated and helpful