http://m.ebay.com.au/itm/Holden-grey-Motor-4-/262391554096 (http://m.ebay.com.au/itm/Holden-grey-Motor-4-/262391554096)
Grey with gearbox. Looks like it has been shown some love at some stage and stored out of the weather. Gearbox looks to have late 57 code. Could be worth a look for anybody nearby.
Dan