I would not worry about it, and would just go. The storm will be long gone by the 7th. It arrives in central Florida Saturday, right?
We moved our flight up, (free of charge from Spirit) and arrived Aug 13 early int he morning, so we went thru Charley. (We guessed the airport might close later in the day, for our original flight, and it did) The resorts have their own power. We did not loose power, and parks reopened the day after just fine. And that was a direct hit on Orlando.
Just answering honestly, what I would do......... (We did not fly into Charley knowing it would hit Orlando, I am not that crazy, LOL)