Everyone has times of trouble come into their lives. One good thing you can get out of this time is to teach your children how to deal with it in their future lives. Show your sons how a real man faces up to the problems and keeps fighting the good fight. Let your daughters see that all your talk in times of plenty about the priority of family and integrity was more than just talk. Now is when they have the oportunity to see you walk the walk. Show them how a person should handle severe adversity.
Don't worry about letting them down or forcing them to live as poorer people. I didn't even know that our family was poor until I became an adult and my parents told me! All I knew was that I had plenty of love, fun times playing outside in the woods, and felt that I was important to my family. I didn't care that I had less than nice clothing - all that meant was that I didn't have to worry so much about not getting my clothes dirty when playing. I loved the inexpensive food that we ate, never realizing that it was all we could afford - I really liked the taste of it (I still prefer hamburger over steak!) Remember that kids just don't see things the way we adults do.
Count me in with those willing to brainstorm and try to help. I have a background in public relations and business management and if I can help, I would be glad to do it. Regardless, don't despair. This may well be the gateway into one of the best periods in your life. Hang on and work through it. I will definitely be praying for you.