Comfortable Salary for Project Manager in Saudi Arabia

Hi All, I'm from Malaysia (Asian Countries)and interested to pursue a job in Saudi Arabia. Working as Project Manager for Railway construction for 9 years and hold a bachelor degree of electrical. I'm married with 1 kid and also planning to bring them once settled down. Appreciate if anybody with similar experiences able to provide some guidelines of the comfortable salary plus other benefits which is common practice in Saudi. This will benefit me to negotiate a best employment contracts. Cheers.