Remember that court case was a CIVIL action, not a CRIMINAL case. Person who sold the XY GT as a Genuine car or whatever was found guilty of misrepresentation as it was a rebody. No criminal action taken. So if you sell a vehicle as a "genuine Sandman" you want to make sure that:

1. It is a Sandman.
2. That the body AND chassis are original to the tags.

If you aren't sure, don't advertise it as a Sandman. Call it a Holden ute (or van) and let buyer decide what it is.