Yeah, I am having a similar investigation. My ID plates give similar detail to yours. Sorry I cant help with yours but if you get a lead I would appreciate any info to help with mine and I will pass on any I get, thanks. I posted this but no reply as yet. ' Currently restoring my VN SS HSV which I purchased in 1992. When I purchased it I checked authentication with HSV which you could do then with a simple phone call and they said that this was the only one built at HSV in 1990. The build number on the HSV ID plate is EB203. The car was stolen and stripped in 1991 and I bought it without the original interior and am now trying to discover what the original HSV interior was, but as HSV is now defunct I am having difficulty getting any actual detail about my car. Can anyone suggest how I can get this information.
Try this link
https://www.hsv.com.au/own/authenticate/ https://hsvdatabase.com.au/hsv-build-numbers/