While we're waiting for further responses, I'll mention that the Chrysler Royals involved have been sold. However, I know where there are some others that you could choose from.

Good value, I'd say, particularly for their uniqueness anywhere but in Australia. I don't know if they went to New Zealand even.

They built no more than 15,000 of them over five or six years with three separate models, the AP1, AP2 and AP3. Most of the body is pure 1954 Plymouth, and the chassis, but the front and rear panels are spruced up to the 'Forward Look' era, fins, more overhang, sharp angles in the Exner style.

And there'd be an overdrive gearbox in there so you don't have to run too many revs with that 237.