Thanks, guys.

I am pretty sure THR is in EUR - it is on the latest oneworld brochure I've seen, at least. Honestly, it would be much easier if I could go through THR and DXB when in Asia, but what can you do.

I would prefer to do SA-Asia-Oz-Afr-Eur-home, but as that routing looks a bit tough, how about (leaving off fares I'll buy myself)

SYD-AYQ-PER-NRT-PEK,HKG-DEL,BOM-BKK,SIN-HKG-JNB-MRU-JNB-VFA,
DAR-LHR-THR,DXB...MAD-CCS,EZE-SCL-IPC-SCL-SYD

The only troublesome bit is getting out of the Mideast. Optimally, I'd like to get to Cairo then Istanbul, then overland to Madrid. As for getting to Aus, it's too bad that the Qantas Airpass has a 21-day restriction - I could add in 2 extra flights if not! - so it looks like I'll have to do the Webfare specials they have all the time, which run ballpark 1000. From there, the LONE5 shouldn't be over 3000, I'd imagine (not sure how common the spreadsheet currency conversion is).

Does this far look good, and can anyone suggest a way out of the DXB/IST/CAI problem?