It has been almost 6 months since HN last dropped its price on the Kobo Clara HD.
Delivery to Sydney is $7.50, totaling to $145.50.
JB has it for $149, you could try to ask for a deal/price match. (There wasn't any stock at my local JB).
More info on the eReader at https://au.kobobooks.com/products/kobo-clara-hd