My wife, son and I will be moving to Singapore next month and I have a few questions to ask, I'm sorry if they have already been asked but would really appreciate your help

1/ My wife has been offered a position with a salary before tax of sg$160,000 plus annual bonus of about 20% will this be sufficient to have a good life in Singapore for the 3 of us with a nice condo, live in helper etc?
2/ We were thinking of a budget of sg$5,500 per month for a 2-3 bedroom condo what areas would you recommend?
3/ When renting a property what up front fees do you need to pay? deposit agency fees etc? and do these need to be paid from a Singapore bank?
4/ What are the major costs when first arriving in Singapore?
5/ How easy will it be to set up a Singapore bank account?
Thank you for taking time to answer and if there is anything you think maybe helpful please feel free to share.
Pete