Dig and dig again
Welcoming words to the HUBB are in order.
There's a lot to learn to get into Egypt, I live there for the time being and trust me getting a vehicle in the country is a nightmare, and can cost you a lot. Indeed without the ferry service, you'll need to sail or fly the bike there, and then suffer. You could also sail or ship the bike to Nairobi and start from there. Cheaper, safer and more pleasant bureaucratically speaking. It's not like you'll hit the dunes or anything like it with the bike, then it's not worth risking you life on Egyptian roads and suffer the heat and dryness in Sudan, not to mention bandit attacks further down. Do yourself a favor, same some bucks there and travel Egypt with Miss directly at a later stage... It's plain highway, dull, long and erratic. Dig, dig and dig again the HUBB for more.