Robert, if you're planning on coming to Queensland I can get you a rides in a few different DRB GT40s, and I can tell you where a GEN-YOU-WINE GT40 with a race history lives...
The genuine car gets out to the occasional race meeting, and the sound of that motor going what sounds like 8,000 rpm literally gives you goosebumps... The most impressive racecar I've ever seen, rivalled only for sound by Dad's favourite (Ken Miles' Cobra when he raced at the same track back in '65) Dad has the 8mm film of that day - too bad there isn't any sound.
Anyway if you don't get any better offers, it might be worth your while flying up here.
http://www.virginblue.com.au offers fares from Melbourne to Brisbane return for about $150USD, even less for Melbourne to Gold Coast return. The DRB GT40 factory is based a stone's throw from the Gold Coast, and I'd be happy to get Peter Ransom (the owner) to spend some time with you.
Let me nkow if I can help,
Craig Marsh