The discussion on materials raised issues about the places you can get materials for leather hats. Obviously you are aware of
Torb & Reiner...www.torbandreiner.com/
and
Lefflers http://www.leffler.com.au/
171 Kensington Road
West Melbourne
Victoria
Australia
3003
NSW Leather see the website below
http://www.leatherco.com.au/content/showroom-locations/melbourne