Ok we have the same problem Kind of. I bought an older 68 model. It's only 7 feet wide. You will want and 8 footer. I pulled the whole inside and put bunks and a dinette in the middle for our 3 and 6 year old. Well my wife just had twins. So they will be sleeping on the dinette I built. We sleep on the front couch / bed. not perfect but will work for a while till the other kids get older... Then I will have to rethink for those rainy indoor days.
You can see pics here if you like. http://www.airforums.com/forums/f44/...dor-44644.html