Class C's seem to have become so tall. We have a garage door 10 feet tall and I can do some remodeling to raise to about 10' 6", but are there any motorhomes under that height?
Check LazyDaze also, they build somewhat lower than manfacturers who must raise the floor to make room for "flat floor" slideout mechanisms. You can also save about six inches if you can do with A/C and are careful about what else you have on top.