Can have an overhead door company come in and raise the header to accommodate a 12 foot door? If that is possible, it would be cheaper than the sales tax on a new motorhome. If you have the height to do it, raise it to 14 foot. Your next MH would be sure to clear that. Most of the newer Motorhomes are 12'6"
I guess this all assumes that the building is high enough to do this.
Life's journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sideways, totally worn out, shouting "...Holy Cow....what a ride!"
2007 Holiday Rambler Navigator
2013 Honda CRV
Returned Peace Corps Volunteer - Sierra Leone