Keep PHONING Fort Wilderness reservations. They seem to be able to find more vacancies over the phone than you can get on line. Take a few days in your vacation period, the keep calling back to check on more days, It might take a while, but you may get lucky and get everything you need. Phone daily if necessary.
There is nothing like experiencing Disney from the Fort. Go to the Parks early or stay late (Magic Hours), come back to your RV during the peak crowd hours and have a relaxing lunch.
Campgrounds with bus shuttles. KOA Fort Summit (SW Orlando) had one the last time we were there. Other campgrounds in the area probably have shuttle service as well, but you are at the mercy of there schedules, ie pickup at 9am or ? and return time... Last time we were at KOA, the shuttle left the campground about 9am and had two return trips, one leaving the Disney transportation Center about 6 and the last about 9 or 10. A taxi might be an option, but no idea of cost, or take the shuttle to Disney and a taxi for the return/
Ken
2006 Winnebago Outlook 29B E-450.
2012 Honda CR-V AWD
Blue Ox Aventa LX tow bar and Brake Buddy Vantage.