T.W.
I have have a family of 5, two boys and a girl. I am pretty consistent with $450 per month on food. To be safe, I just plan on $100 per person and I am good to go. As far as the other information you need, good for you to be so thorough, so many people just get excited about the opportunity of bigger and better and forget about the details. I wish I had specific information on the cost of living in that area but there are so many factors, I would hate to lead to down the wrong financial path. Your realtor should be able to provide that information for you though.
Good for you and good luck!