QF 91 SYD-NOU on Sat/Sun appears to be on their own metal.
Yeah, I remembered the last stopover/segment rule after I had posted, I'd either pay the extra segment or reverse the trip direction, which would eliminate the stopover problem. Also thought of changing JNB-CPT-JNB-overland-NBO-MRU to [JNB-overland]-NBO-[SEZ]-NBO-[MRU] or vv. for more mileage.
Most likely flying coach, though I recently flew business class for the first time back from Milan and it certainly made a difference.