Repair Damaged Sewage Pipes

My wife and I purchased a home that we love and live in with our 14 year old daughter and 8 month old son. We recently discovered that the main sewage line under the house and 85 feet FROM the house is busted and that our home is sitting in sewage under the concrete. To repair this will require replacing the pipe from under the foundation of the house to the sidewalk and will costs $8000. It is imperative that we get it repaired quickly as it is a health hazard to our children. So here we asking for YOUR help! Would you help our missionary family get this repaired quickly? God bless you!