VHGF 526, most likely set up as a VHAF with grade control, but not yet restencilled. If the wagon was marked correctly it would be a VHAX to denote that is was suitable for bogie exchange.
VHHF 805 with SG bogies. Again, this should be a VHHX code.
Yellow VHGY (in the 200 series I beleive) with 70t SG bogies. In the V/Line days, the Y would denote high speed 50t bogies, but I believe Freight Australia modified some of these to 70t bogies and made them a Y wagon for the SG. As no 70t BG bogies exist, this wagon would have always operated on the SG once the 70t bogies were fitted. The wagon is now stored out near Ararat in Victoria after being stored in Portland for many years. It is probably now green or blue.
A partial repaint of VHGY 218. This view clearly shows the 70t bogies. No doubt an Ausicison hopper could be modified with 70t bogies from Exactrail to match this prototype photo.