I've been gawking at this car on Carsales for a fair while now. Sorry to hear you're having trouble with selling. I'd be damn tempted if I could actually sell my car. Would be an epic trip back to the gold coast.
Out of Interest, what kind of power are you running on the 6262? I'm guessing the engines standard internals?
I know your add states only an 04+ 350z (and I'm sure there's fair reasoning to that), but I can't help but ask the question that I myself, hate being asked so much myself with trades, "You wouldn't be interested in a S15 1JZ would you?" The only reason I ask, is because they're both turn of the millennium, 6cyl, rwd sports cars, but I understand it's not everyone's cup of tea. I'm guessing coming from a GTR you're looking for something a little different.