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Glen, I am really happy that you addressed your questions to the LH board and not to the *A board. In the latter case I would have moved this thread to the UA board as your questions are about redeeming MP miles.
But now to serious business: I do not know, if you have M&M miles to burn. If so, you could request Germany/RSA vv on M&M other partner airline SA for 70/105/140k M&M miles (I do not know about availability on SA 261) . Definitely not for this time but for later (if you can do a cheap SYD-PER vv): You could ask for PER/RSA vv on SA 281 for 90/135/180k M&M miles.
Another option for now could be using SkyMiles on a SA award from Great Britain to RSA vv for 50/80/120k SM miles.