BTW - South Africa-Istanbul-Sydney has better availability for almost the same price than CAI/HBE (or even cheaper) in biz.
Sydney-Istanbul-Sao Paulo in economy is available from 919€ if someone needs to get to South America from Down Under
Sao Paulo-Mumbai in economy is available from 799€
Toronto-Cairo in economy is 582€ oneway - roundtrip 805€
Mumbai-Cairo in economy is 320€
One itinerary could be
YYZ-IST-CAI (Africa) / CAI-SYD (Oceania) / SYD-GRU (South America) / GRU-BOM (Asia) / BOM-IST - STOPOVER - CAI / CAI-IST-YYZ (North America) - within the stopover do.a quick IST-SOF-IST for 110€ to tick off Europe - around 4000 USD for a starting point in North America