Possible, bit of a headache though, shipping rates from Australia to the US aren't that cheap, especially for car parts. Plus you've gotta promise us you won't put our GTR badges on your Hondas.
I don't see any hassle in that sorta agreement, other than organising for the parts to be sent to you, and international payments. Not many people in Australia use paypal and other US based electronic payment methods, so you'd have to rely on good old international transfers.
Not really, our spare parts come from Japan, and we'd have covered the costs for getting them from there. For example, an R32 trim piece costs US$20 in japan, in australia it'll cost about US$40... by the time you get it to the US from Australia it'll cost about US$60, and if you had gotten it straight from Japan (overnight parts from Japan dude!) it'd have cost you US$40.
I'm willing to bet there's more skylines on my street than there are in the whole of the US, so finding spare parts in Australia is gonna be pretty easy (just check out the classified sections). Convincing Australians to actually go to the hassle of sending parts to the US and waiting for payment from overseas is another matter altogether.
We are getting the next gen GT-R. Whether they'll be as readily accepted as a replacement is to be seen. Guys in the US are hankering to buy locally sold GTR's, but we're spoilt for choice here when it comes to Skylines... so its not like everyone's gonna rush out and go buy the latest one, because they're all legal here. I think the only Infiniti's we ever got was the Q45 and the 4WD whatever it was. They weren't exactly big sellers here, to a point where all the Infiniti dealerships closed down and are now only sold and serviced at Nissan.