You will have a hard time finding a MH that sleeps 4 kids separately and two adults, none to my knowledge have bed over driver/passenger seat(that would be class C) and then need a toad. Train the kids to ride in back seat but 4 kids in truck back seat is a lot to ask as well which leaves the HUGE SUV and travel trailer. I do not see you have choices really. Toy haulers often smell of gasoline if you have gas powered toys in it. Electric bed idea I do not like it, break down easily. Make sure your vehicle and pull the trailer and contents, water etc and have still some room so far as weight able to be pulled by the SUV. GREAT that you want to take the 4 kids camping and more power to you. You are not camping enough to really justify something expensive, go used for the trailer but check it out carefully!!
