I reckon the road trip is the way to go, 2 weeks is plenty of time to go Perth - Exmouth, and then a day or two return. Perth, Lancelin, Cervantes, Green Head, Dongara, Gero/Coronation, Kalbarri, Exmouth. At that time of year, the sea breeze will be in - drive in the morning for a few hours, set up camp, kite, stay a night or two, rinse & repeat.
If you're flying 30hrs to get here, might as well see as much of the place as possible.
See this video for inspiration -
To answer the original question - bring your gear (6 & 9), or else another hire option is Dave at KiteBase here in Perth if you were going to go up and back.