I have an AS flight from LAX-SJO coming up in Y. I plan on using my 30k 'Gold for a Trip' (this trip should be enough to get Gold properly). I am assuming that should get me into the AS lounge, AA Admiral Club, and the QF J lounge??? I don't see anything restricting access for Central America flights for AS OWS.

I plan on spending most of my time in the QF lounge, as it is certainly the best of the three. I have been to most lounges at LAX, aside the Delta One, AMEX and the QF F lounge, so I have a pretty good idea what to expect. I don't look forward to the T4-T6 bus bridge to get back to T6, but it is a necessary evil.