Costof living (Lagos)

We are an indian family with two small children ( 5yr old and a 1 year old) . We have an offer to relocate to lagos in june Protected content . The company is giving us a fully furnished apartment in ikoyi, with car, driver, schooling , medical, insurance, a local salary and a saving component in our home currency. We would like to know :
-how much would be the approximate cost of living .?
-any good play schools or play groups in ikoyi.
- how safe is it?
- how much would be the salary of good house help and a nanny?
- will the gated communities have parks, sports facilities like swimming And tennis?

Wild be great to get a few answers before we make our decision.