QF sold the last of the A300s that belonged to TN a couple of years ago. They were very well liked in Australia but were getting old and given they only had 4 it was uneconomical to keep them when compared with the huge 767 fleet. I know a number of domestic J class customers miss the J class cabin of the A300.
They were sold for conversion to freighters.
As I understand it QF captains earn in excess of AUD200K per year but I am unsure of the exact figures and I am sure there would be a whole load of extra allowances etc on top of their standard pay figure.