As a saphire, you and one guest have access to the AC on an international ticket.

Now, the AAngel may (correctly??) argue that you are flying domestically to HNL due to the 3 day stop over, but I would hope that she sees the HNL-SYD segment and lets you in...The language below is not very clear.

https://www.aa.com/aa/i18nForward.do...worldCustomers

Credentials required: oneworld customers must produce government-issued photo identification and, an Emerald or Sapphire frequent flyer membership card or, a First or Business Class boarding pass for the journey’s international segment on the same day or before 6:00 a.m. the following day. Stopovers are not permitted.