I have to admit that although finding ready-made gluten free pizza bases to be a bit on the tricky side, finding vegan gluten free ones, even harder.
But I did.
In Coles and Woolworth's supermarkets you can find this product (pictured) in the health food section. The crusts are quite small so you will most likely have to use all three crusts in the pack. If you are a big eater, 1 pack per person. If not, 1 pack for 2 people.
They are quick to cook in a hot oven. All you really need to do is add the toppings and put in the oven.
The crusts stay firm when cooked. No saggy bits here. Taste wise, probably not the best I have had pre gluten-free eating, but fine enough.
website. Some of their other products are vegan, some not. I was disappointed to see that their 'specialty diets' tab did not include 'vegan' and nor do their packaging seem to label suitable products as being 'vegan'. So, it is once again, the usual habit of a vegan to peer at the ingredients list and get the 'food numbering decoder' out.