G'day Josh, Welcome and enjoy.
check out the sited pinball thread to check out pinballs in your local area even in Newcastle at Pinball and Pizza (after 4pm) always have 6-7 out the front as well as there are quite a few pins spread out in Newy and Central Coast by Luke. I have put a (L) behind his pins as they are all really nice playing pins and often he is open to selling select ones.
http://aussiepinball.com/index.php?topic=8025.0but like what ajiard said, better if you can play first. If in doubt start a thread and ask for help.