That is a great price indeed.
Matt, are you aware these tyres are NOT street legal in Australia?
I know guys who drive to and from the track on them, even ones that have been pulled up at brethos and not busted, but it's the whole "no insurance" if you crash thing that worries me most.
They do not have load ratings marked on them.
Also, I've been advised that they are very much a straight line tyre - twisties will be right off the list if you do decide to run them. Also shocking in the wet - even damp roads are like ice.
Hope this doesn't rain on your parade too much, but I'd hate for you to find out anything like this the hard way mate.