Hi, 300dpi.

That is true that many aussies need this. You have mentioned about some module - I could't find any signs of it. Could you be more specific about the module? Any URL how to get to the module? As if there's some job already done - together we can make it working.

BTW, you could easy use weight quotes to match close enough for Auspost shipping costs. Auspost needs to know item dimention, weight, number of packages and shipping method. Weight quotes could be easily setup to match those parameters