Reaper Mobiles look pretty groovy. Of course there are ones already modified with chair lifts and such but usually the rig is not somthing that could be totally topless, perhaps window less.
One of my half baked ideas was taking old stretched limos and cutting off the top and putting off road seats in it. The bus idea would be much cheaper. I might take out every other row of seats so the capacity wasn't so jammed in there and the weight. There is a big difference in weight between 200 pound adults jammed in there and 50 kids.
I also wanted some type of roll bars, not that it will roll over but that tree branches don't take everyones head off. It would add to the road warriors look. These might have lights on them to illuminate some things. Even strobes and speaker systems.
Another fabulous post from the U.S.Department of Wild Imaginings, now in spectaclar stereo, sponsored by the Adhesives and Sealants Council, suggesting ways to stick things together since the 1800s. Not fabulous in a gay way. Your results may vary. Illinois residents add 8% sales tax. These posts have been made by professional post makers, do not try this type of posting on your own without extensive training, lovely assistants and a trusty clown horn.