Ivan:
South Africa would have stuck with Mirages, but since they are a rather large country, if you count them hanging on to Namibia, I see the Mirage 4000 as a good aircraft for them. If you get the Saudis to buy it,
this could kick start development and lower unit cost. I see Spain, Brazil, Greece, Australia, India, Taiwan and South Africa as potential customers, and they could have it locally assembled by Atlas and integrate
local weapons and avionics, and even develop improved versions with France (Mirage 4000-9 maybe). They could go for the Mirage 2000 the same way if the 4000 dies as in OTL. I could also see them joining
the Tornado consortium as well to replace the Buccaneer in the low level and nuclear strike role with local assembly as well.