Welcome to Aussie Pinball!
Nice looking game is Dragon. You never know when a glass may come up on eBay. Good luck with the search but if you get sick of waiting another option is a reproduction glass. They're available here
http://bgresto.com/?p=1174 I have a Asteroid Annie glass from a group buy that was organised here on AP and it is very nice. I think the guy who makes them can be hard to get hold f at times though. Well worth the effort when you see your glass though.
