A top car would cost you apprx:Qr 2500 per month,
Petrol is to cheep to take into consideration.
Food for one (Vegt as you say)at most 2000 per month,
Now House and School: depends on what you have and want, besides, if it is included in the benefits ( then you pay nothing)or not then you pay:
a minimum of 8000 for Full Furnished 2Bd flat,
around 35000 per year for a prestegus School,
and as some said, in the end it totaly depends on you..
All in All it sounds good...
Best of Luck