The skylinenationals website has some conflicting info on the home page:
The event is being held over the whole weekend, so book your holidays now, and be there. Registration is on Friday the 28th July, at the Shepparton Town Hall. Each model skyline will be covered, but it is an event in recognition of the 20th Anniversary of the only Aussie Skyline ever made, so that vehicle will be the premier attraction. We will have Skylines from the first Prince GT's to the current model R34.
Apart from all the pikers it should be a ripper, well done for organising it!
By the way did I see a keyboard data services sticker on the side of a Z in a shannons commercial?