I have Offer for 1300 RO .... Work location is (Salalah or Muscat)

Hi,

I have recently got offer for 1300 RO which includes all the expenses and apart from salary company provides Medical Insurance for self and family & Family Visa....  I need to take care of Accommodation , Food, Car lease, Mobile, etc ... My work location in Oman would be either Salalah or Muscat ....

I am from IT background i have around 9 yrs of working experience and i currently work in Pune , India and my take home salary is INR 80,000 ( 515 RO PM) when i convert it to Oman Rial.

I am planning to move to Oman as single for 2 years and then latter on i need to take my family over there....

I need to know if 1300 RO is decent or good or average salary... and how will be cost of living expenses ???

Cost for 1 BHK apartment ??
Cost for Gerocries for a month for Single ( I can cook breakfast and Dinner) ?
Cost for hotel expense (If i eat lunch in average hotel daily) ?
Cost for Leasing a Car ?
Cost for Mobile (with Calling card for India, as i mostly make call to my home) ?
Cost for Unlimited Internet for a Month ?
Cost for Petrol (If i travel around 1000 Kms in month) ?
Cost for Electricity , Drinking Water, etc ?
Miscellaneous  cost (If i Miss any thing to add above) ?

Can you share your experience and thoughts so that it will be useful information for me to consider this offer...