I was looking for a case for my revived S4 and stumbled upon this. Not an overly pretty case, but functional with the added 2300mah battery.
Staticice has them listed at EYO for $85.88 and iTech for $93
Nearest stores with stock at time of posting:
Auburn
Gordon
Mascot
HN @ DM Alexandria
Moore Park
Balgowlah
Thank you OP, purchased one for the misses. Still stock in South Australia - City Cross, Woodville, Noarlunga.