Keep looking, they turn up on Ebay about as often as chime boxes and places like Pinball Warehouse in Melbourne might get a wrecker through their shop.....Give them a call and let them know you're hunting.
Also consider The sharks fin type...it may not be authentic but it works if you have the mount and if not you can always retrofit the round pins.
If I spot one I will give you a yell.
Welcome to the High Hand club....one of the best looking tables ever made if you ask me. Be patient, it's worth the wait.