SAA#261 from 1973 request

This flight departs GCLP at approximately 18:30 local time and heads due south, around the western bulge of Africa, turning eastward for Johanesburg, but not coming over land until Angola (which was then still in Portugese hands). I flew on this B707 flight as a boy on the night of 7/3/73, and would love to recreate it, as it is one of the most awesome sunrises that I can remember. Thanks to anyone up to the challenge of creating this. Please PM me if you have done so.