Yes, you can:)
Just do the math. $8.5AUD per dice. Let's say if you want 5 dice, them 5 times 8,5 is 42,5AUD.
Also, as for shipping fee. If you order no more than 6 dice, then don't worry about paying addtional postage. We have you guys covered :)
Don't see the answer to your question? Ask the project creator directly.