Hi Peter & welcome

You do indeed have a genuine Sandy

Sage green http://gallery.oldholden.com/Mr_Jone...HZ/Sage+Green/
Buckskin interior http://gallery.oldholden.com/Mr_Jone...kin/Kingswood/
253 4spd 3.36 diff

What's the chassis no? Should be around BHZ33500A give or take 150

Leroy