Thought I should reply as you haven't had any other joy as yet.
Yes push for additional to cover the cost of food if possible - but the company being a large company already based here they will have a standard markup already included. Would be difficult to get them to negotiate.
As an Idea we burn through about 400-600 USD a week on food and maybe a restaurant or two. That is with a stock of supplies we have brought in.
What we bring in is those small items that you enjoy. Like a particular sweet, brand of salmon etc. Anything to buffer the poor supplies (no choice) and even poorer quality (sat in the sun for weeks in the harbour, thrown from the delivery truck etc).
Don't sweat too much though on what to bring first time. You will develop the import list as you fly in and out.
Salary? Well how long is a piece of string? I cannot answer that. Get as much as you can because you will burn $$'s here. If not in country then just getting out for a respite from the place.
If you can try for a reccy trip. That will give you an idea of what to expect and what to bring in for your accommodation. Some oil companies do this for the residential employees.
Social scene? Normally very good among your expat co-workers. Don't worry they will lead you astray
Golf?....there is a golf course on the southern edge of town but don't bring your good clubs. Very rough and not what I would call a course. However there is a new course opened up about 2hrs south
on the banks of the Kwansa River. That is a world standard course (so I'm told). 9 holes open so far and the back 9 ready to open soon. Membership I think is about $5k per year with a $2.5k joining fee. Don't know how this course will go as it may get crowded and 2hr journey is a long way to go to find the course teeming with people.
Only thing I would suggest is write in as many out of country trips as possible into your contract. You will need them for your sanity and health.