Just been back from oversea after a couple of years..

I have good water sports, snow sports, and skydive skills, I had years ago experience with power kite, my weight is 80 kg and live now in W.A
Thinking to buy a kite that I could use pretty much everywhere with anything if want to, on the snow, the water, on land with buggy!
I looked around, first I was thinking of kite with cells but I am worry about the water, also was thinking of a 13 or 15 in size as it would be used mainly on a 11-18 kts wind.
I found the "Best Waroo 2009", and Peter Lynn "Guerilla II" is any of you had experience with thoses kites yet? Or any of you have any suggestions to make on kites and sizes for me I would be very happy to hear them ;)
Also I am looking for a buggy too! Any around?
Thanks guys

David