How can you be at 60K EQP after a DONE4 and AONE4? It is possible to get >80K EQP on a single AONE4 and the minimum earn is about 45K ... unless you didn't credit them to AA you should be EXP already.

As for MRs out of Oz, forget it right now, the priciing is not lucrative. Ex-UK has had some cheap pricing but doesn't help you for weekend runs. The best you could do would be MEL-NRT-MIA, perhaps using LCC or award for the MEL-NRT sector. NRT-SJU might also be cheap, but it varies. However it is too long for a weekend trip. QF hasn't been matching the low fares (eg. EK J SYD-AKL or even SQ J/F fares for that matter).

As for the Circle or GE fares, keep in mind that they are "anti-MR" fares; the only reason to use them is for routing. Otherwise the equivalent cost OWE fare is always more miles.