@JHamilton, Forgot to say in Aus the Monaro the GTO is spawned from is becoming quite a collectors piece..... this quick search of the local online car sales site shows prices up to $185,000 for a no miles unused stored manual transmission 5.7 litre version.
The cheapest is at just about $50,000 with close to 250,000 klms on it.
https://www.carsales.com.au/cars/hol...ries/?offset=0