Hi Suzan
I can give you contact details for those places in Australia and can put you in touch with the support group in NZ if you need information there.
It's probably easier if you email me directly incase you need further information lindapowell@optusnet.com.au
With regards to bringing in medications to Australia & NZ it's always best to have a letter from your treating Dr explaining what the use is for the medication and why the person needs to have it with them. Those medications are used here so they are not prohibited but it will just make the process very easy should the medications be queried at customs.
You probably are already aware but seeing the flight is a long one it's recommended to have half of the medications and solu-cortef vial & needles in your carry-on-luggage. Just in case something happens mid flight which isn't likely but you cannot rule it out 100%. I've carried needles in my carry-on-luggage and it wasn't queried, possibly the assumption is diabetes? I wouldn't volunteer information that you have those items on you but having the letter there saying it's required to be with you will again avoid problems at x-ray or customs should it be raised.
I hope that helps and as mentioned if you email me directly I'll forward you the contact information you need.
All the best
Linda