Every day when I'd go home from work when I lived in Daytona Beach, I'd drive by the Town & Country RV Park
which is at the corner of Tomoka Farms Rd and US 92. All those years I'd notice that often the same rigs would be in that park on a seasonal basis. You might want to contact them to see if they'll work out something special for you.
There's also a few more campgrounds scattered around the area, Nova Family CG and Daytona Beach CG toward the south end and an Encore Park at the north. Also, just west of the Town & Country CG there's a new one called International RV Park.
There's more in the area but the ones I listed are the ones closest in proximity to ERAU.
Good luck, CYA @ Walnut Hills.