Just wondering, what was this model of kite like in it's day? And how old would this setup be?http://www.gumtree.com.au/s-ad/jupiter-creek/surfing/kite-surfing-set-up/1005017979#
I think there is one too many zero's in the asking price unless the cars included too.
i learnt on one, (a 9.5m tho)
it was the biggest death trap.
apart from taking 4hrs to pump up the stupidly large leading edge, it could not be water relaunched (i think i did once), it couldn't be depowered and it wouldnt turn.
the guy should be paying you to take it, definately not worth $600.
offer him $50 and a pickup.
I saw something similar on antiques and collectibles .at $600 those antique in such good condition are a bargain (kite obviously not used much because it was impossible to fly .)
... hey I still got one of those, sitting in the shed!
I tried to learn on one (17.5m), bought it when it was a run out model, going real cheap only $999 in 2003. But the leading edge only lasted 5 or 6 sessions and split and exploded while sitting on the beach. In Naish's wisdom, they tried to make the LE with a dacron/mylar laminate but when they put the mylar on the outside, it de-laminated around the stitching which made it really weak and would explode. This is what happened to mine. Being totally ignorant newbie at the time, I was told, 'this will happen because you over-inflated it'. "Oh, ok, better buy a new one then", and got an X2. I soon worked out I was completely stooged, I had probably only inflated it to 4 or 5 psi so infact it was never over inflated, but since I had a new one I didn't bother to persue it. It was flawed and I paid with my ignorance.
Cheers,
Robbie 
That ones the same colour as the one I bought in 2001,mine was a 9.5m projected area of 13.5m . Had the same issues as Puetz , leading edge split open because the mylar delaminated around the stitching.I was lucky and got it replaced under warranty.I ended up with the next years kite still an ARX but a totally different material was used for the leading edge.Ive still got that kite,might take it out one day when im feeling adventurous 
If you are thinking about purchasing this kite from this guy i would consider looking at his other items.
The collection of 5 plastic tubs are definitely safer, and probably fly better 
The ARX was miles better than the AR3.5 I had, and seemed a bit better than the AR5. 2000, to 2001.
Brings back memories...
Safety leash velcroed to your wrist, disabling the rider as much as the kite when deployed.
Certainly an adrenalin rush, think mine went with a bang.
I remember ARXs being really prone to hindenburg. For those not kiting pre-2002, that means the kite would fly too far forward in the wind window in a gust or from pilot error, stall, and then drop nose first out of the sky. Sometimes almost on top of the unfortunate rider
yep, still got an 9.5 ARX in my shed. At the time it was an awesome kite. Every summer I think about getting it out for a dust off along with the AR3.5
