Can you obtain cap and ball revolvers easily in Australia? I understand that their gun laws are quite draconian. Spear guns have to be registered and the laws were drafted by Soros minion Rebecca Peters.
Rebecca Peters did not draft Australia's gun laws. She was head of an anti-gun lobby group in Australia at the time the guns laws were rewritten in the second half of the 1990s, but she had no involvement in writing those laws - if she had, they would be very different from what they are.
In most of Australia, spear guns, as used in fishing, do not need to registered - it may be all of Australia, but I can't rule out every state without doing research. If somebody made a spear gun specifically for use out of the water, I think that might have to be registered, but generally there is no registration on spear guns.
It's not that easy to get any revolver in Australia - handguns are not banned, but are restricted to the holders of particular licences and those licences take some work to get and not many people have them. Consequently, there's not a huge market for hand guns, and not that many places sell them (generally, if you want one, you have to import it or choose from a limited selection at a couple of the largest gun shops). Cap and ball revolvers will be sold as antiques occasionally, but that's about the only way I can see many changing hands.