I've done the hard work for you by selecting quality works by Australian authors, all of which are also under 320 pages. Each line is either 4 works by the same author OR 2 pairs of works by two different authors (i.e. the current favourite) OR 4 single works.
The works are mostly novels, but essays, memoirs, short story collections and picture books are also included. Everything from traditional outback tales to books which shine a light on Australian multicultural society.
NOTE: you can disregard the score (32) of the troll Chadman, as it just ticked off the 1st 32 books but none further on.