I just wanted to suggest a great stop en route to Disney on I-95, St. Mary's GA. It is just north of the FL border. It's a beautiful little oceanside town that has a nice park right on the ocean. Next to the park is a lot of boat parking, which doubles nicely as RV parking. And just a few short blocks from the waterfront is a wonderful little restaurant called Sterling's Southern Cafe with the best crab bisque and crab cakes I've ever had. Leave St Marys and go another mile or so south on I-95 and there is a perfectly serviceable and cheap overnight RV Park, Stark's First in Florida. It's certainly not a destination type campground, but it's right off the interstate, and yet quiet, all the sites are pull-through, and I think was $20 a night last time I was there. This is a great way to finish a day of driving early, enjoy a lovely meal and some downtime in a picturesque oceanside park, and overnight for cheap. Get back on the road by 9:30am and you'll be at FW by check-in.