In regards to accesories for Hand acupuncture, I'm afraid that you can't really find them in Australia but I'm definately keen to help and arrange shippment from Korea(as I was closly related to the KHT centre). There are many interesting items, including special needles, metal specific insertor, bands with silver and gold balls, moxa for the hand and others.
There is an option to find some stuff on the net, from the states, though I'm not sure about the price. welcome to contact me to find out more about Hand therapy products.
In regards to pain threshold, I think it is not a painful acupuncture. It is true that needling the hand seems like a sensitive area, but the insertion is quite shallow and the proper method overcome pain. I can compare it to body acupuncture. There will always be sensitive points.
Be still as a mountain, clear as the skies,
flow like a river and move like the wind.