I clicked on your link to the Aussie Chryslers, very impressive but, you dont have a Valiant Hardtop pictured.. These are seldom seen nowadays and most of you guys in the US know of the Coupe called the "Charger", but are very unfamiliar of the Hardtop..
Anyway, here is a picture of my 1972 Valiant VH Ranger XL Hardtop, My father bought the car new, its done 60,000 original miles and is running a 245 Hemi 6 cylinder.. I think the styling is very similar to those of the Roadrunner of the same period..
Adam in Australia