Only a private ruling from the ATO could determine this. "Arguing" with the ATO on GST matters doesn't get you far If a dealer was determined to have been selling these without GST incorrectly, and was assessed the GST, the GST bill will likely be higher than the profit margin - especially if a penalty is also assessed. Not worth the business risk.
Anyone know what date these coins are released...I can't wait to get my hands on a sheet or two and some loose coins to examine. I made the mistake of buying all my 2014's from one dealers stock and later realized another dealers batch were much higher luster. Mine are dull 68's & 69's & his are flashy 70's.