Analysing a Job Offer in PNG

Dear Friends : I am a HR Professional and have got an Offer based in the National capital.  The offer is for USD 3,900/- Nett +

Accommodation - cost of all residential utilities, such as electricity, gas, water and related costs within the agreed budget
Charge Card – worth of K 200.00 per month, non-cumulative and not convertible to cash
Company Vehicle – maintenance and fuel cost covered.
Closed User Group and Post-paid Plan of our own chosen provider
Lunch & Dinner Supply during working days
Medical Insurance
Fitness Centre Membership
30 Days Annual Leave, 9 Days Sick Leave, 14 Days Compassionate Leave
Airfare
Return flight from place of Recruitment to Port Moresby (2 per year)

I will move alone and my family will continue to live in India.  Please let me know how good is this offer as I need to send money to india for my family monthly running.  Also, anything else, which I need to know.  Thanks.  Dr. VENKATARAMANAN C