I'm thinking of organising a Datsun day in Palmwoods on the Sunshine Coast which is where I live. There is a café called Rick's garage that regularly hosts car and bike meet ups. Palmwoods is just near Montville, so generally there is lunch at Ricks before a sweet drive through the hills in Montville and across the range. Just trying to see if there is any interest at the moment - there are a few dattos around town and surrounding suburbs.
Take a look at the Rick's garage facebook if you're interested. I used to work for Rick so should be able to organise something pretty easily.

https://www.facebook.com/ricksgaragediner