Mike, first off you have an impressive collection !
Have heard that in Australia you could own firearms but didn't fully know all the red tape you all have to go through to get them.
But at least you can own guns, thats on the good side.
In the states here in Indiana we are one of the first early states thats considered "Shall Carry". Once we register for our carry permits, pay the fees, we have our conceal carry permit within two to three weeks. My last permit I got was a lifetime. We don't have to take any gun courses. Once we buy a gun we can buy another gun or rifle after a 10 day period, authough can also buy multiple guns at once (authough its not recommended).
Luckly most of our states honor each others conceal carry permits.
S&W .500 Magnums RULE !