I don't think it is, it is indeed a Terry Scully rod, but the in 1968 rebuilded rod you mention. The chassis was heavily modified, it was lengthened & lowered overall. The bodyshell, sectioned by 10 inches, shortened by six and chopped by two inches in the rear. At the back, a customised tail extension housed ’60 Falcon tail-lights. Lowered over the hand-made 14-gauge mild steel chassis, it provided a tiny rear cabin. For the finishing touch, the front of the car was equipped with the nose from a Lynx open-wheel circuit racer.
Looking at it, the Minnor front axle was also lost in the rebuild and replaced by an indipendend suspention.