Save your money and go to the Lawrenceville hamfest in November put on by the Alford Memorial Radio Club. Bigger than both put together.
Seriously, the Lawrenceville fest, at least the one time I've attended it, was tops. It has more used gear and parts than anything short of Dayton. I think it actually has more than the Orlando Hamcation does. Kennehoochie is good, but if you are coming from a long way, the Lawrenceville is the best one in the Southeast Division for flea market stuff.