I kite WA and suggest you get wheels (don't need 4WD). Kites are all up and down the coast, you will see them from most coast roads. I can say that all spots are friendly, just be warry of thieves....using the search function on this forum is the correct way to go.
Please make sure you visit
kiteboardingwa.org.au/ to get info. on local conditions. And when you register to kite with WAKSA you can kite anywhere in Aus. and attend all WAKSA functions...enjoy WAAAAAAAAAAAAAAAAAAAAAAAAA.