3. Do a ConMon Egypt in Kaiserreich.
Egypt was on a steady path of modernization, liberalization, and militarization. The main target, was the Ottoman Empire, which threatened the independence of all Arab peoples and their regional neighbors. Egypt secured an alliance with the Iranians, and provided weapons for arab revolters. The Idea was that the various revolters would join under King Farouk, allowing him dominion over all. However, after victory, the Rashidun Arabs grumbled at not receiving Levantine territories. Their king declared himself caliph, but the Egyptians put him down. Since the Entente were weak, and Morocco insulted Egypt, Egpt invaded North Africa to get to Morocco. Swiping up all of French West Africa was a nice bonus. Now it was time for the showdown with Ethiopia. However, there were not enough metals and such resources to produce the artillery that the army would need to overcome Ethiopian manpower advantages, so Egypt moved into various Middle-African countries to secure the mineral wealth there. Then once the army was properly provided for, they prepared to invade, and instead were delayed with a rebellion in Sudan. Then Ethiopia was finally taken over.
Egypt, controlling much of the Arab/Muslim world, having achieved great conquests, and controlling the Holy Cities, could well allow Farouk the opportunity to designate himself Caliph... and he would have the historic honor of being the first Constitutional Caliph to rule in accordance with Western-style democracy.