Living in Guangzhou

I am being recruited by an automotive company in Guangzhou and need information about wages, living expenses, health care, any help will be appreciated.  I am a mid level manager in the automotive industry and am being recruited to manage an engineering and design group that will be responsible for designing an interior for a new car program.  I will be managing a group of between 20 and 25 engineers and designers.  What kind of salary does a position like this command there?  What will it cost for housing, food, house keeping and all the other basics?  It is a 2 1/2 year program but they have already talked about extending that if I like what I am doing and the area I am in.  The company that would employ me is Cotech Shanghai and I would be working for Guangzhou Automotive. Please respond as soon as possible as I will have to make a decision within about 2 to 3 weeks.