Well, after reading so much about the dangers of the west Africa route, it has completly took the wind out of my sails, and put me off.
If I was to go, I would most certainly go Italy, Tunisia, Libya, Egypt, Sudan, Kenya, then take your choice.
Sure the carnet for Egypt is not cheap, but you will get 80% 0f the carnet price back, when you hand it back in again to the originator.
Also, there are so many damn countries going the west route, you would be for ever be buying visas, East coast, is about 8 countries max.
No way on earth would I go the West route.