what do you mean by free food? does the company give you an allowance for food, or they send you a cook food to your acommodation?

IMO, you will be struggling with 1100 USD with the families. How about dental, medical, flight to go home and other things?

And pls do not hesitate to use 'search' function on the top right ... they are very usefull to find the information that have been asked million times before, and the most important thing ... to use that 'search' button is free of charge :D