[jimmySixDOF]

There are quite a few African "Cape-to-Cairo" variations of travel by land tours they have been a thing for a long time and still going by the look of things ... if you have 23-weeks!

https://www.oasisoverland.co.uk/trips/cape-town-to-cairo-23-...

https://compassexpeditions.com/special-tours/major-expeditio...