Cost of living and package

Hi All,

I am thinking to relocate to abu dhabi from the UK, where I am currently working.
From various websites, I have colllected following information for cost of living.

Decent 3 bedroom house in a good location : Cost £2500/month
Education : £1000/month per child for private British school
Transportation/own car : £250/month
Food : £300 per month/mostly vegetarian
Other house bills, £250 per month
This comes to 30k+24k+3k+3.6k+3k+£2k = 65.6k per annum.
Medical : £2k/annum
Assuming all expenses are included in this, it seems that either a package of £100k or a package of £80k plus accomodation would be worth going for this move. Could anyone with similar situation please let me know if I am reasonable in my assessment/assumptions above?
This is for 2 primary school age going kids and two adults.

Rehards,
MKG