Egyptian cores to Egypt is a terrible idea
A) its currently a tech 20 formable like Germany
B) you could take one province then vassal feed, as Egypt surely becomes the primary tag of Egyptian culture then
Syria is enough in the levant, although you could also have a Jerusalem cores from game start
Cyrencia does sound nice tho, especially if Ottos did get this pseudo burgundian inheritance, Cyrencia cores could be used as a check of which provinces Ottos takes.
When making suggestions I'd check current mission trees to see what already exists in the script, funky stuff like Mughals releasing the deccan in exchange for admin efficiency, Orissa merging all of its vassals into one