The first place I would go to is a Local Lender that is a direct lender. Like The BofA, Chase, or Wells, or Quicken Loans.
Then you need to find out the percent of property taxes for that county.
In Southern California I will give you a rough idea, but the one thing many fail to say.
Please Don't Forget the CLOSING COSTS!
In the area I represent, a rough estimate is on my website to give an idea.
Here again I hope you contact a local lender to help you.
I wish you the best in your transaction
So Cal Homes Realty
-property taxes:$119/mo (this is a very rough estimate, check your local county property taxes for specifi)
-home insurance:$50 (this is a very rough est. call a insurance agent for a quote)
-FHA mortgage insurance:$51/mo
Total housing payment:$809/mo
Since you know your situation better than anyone else, I would suggest you check into an online calculator like the one at CNN (referenced below). However, before you go any further than that, you should check with a mortgage broker who can tell you if you qualify for a loan on the property.