I havn't checked this thoroughly, but you can maybe take a look at this web site:
Some of the SAA fleet's names were listed there, but it was incomplete. SAA have their entire fleet's names listed in their web-site, but then they have omitted to link the names up with the registration numbers.
The above internet site is very useful to have as a quick reference in your favourites anyway.
Behind every "no" is a "yes"