I'm about half way through this, but my thought is that any search for the places where the story of Moses happened may be missing the point. Exodus, Leviticus and Numbers tell an allegorical story about the search for meaning. Moses grows up in luxury but encounters human suffering and becomes one with those suffering. By crossing the boundry of the re(e)d* sea (sea meaning any non flowing body of water and symbolising dead rather than living water) he leaves his former material concerns and enters a wilderness in which he and his people (all of us) wander for all of our lives in search of the promised land and along the way the talk is all of how to be better and get to where we should be. Moses departs before we get there and the point is that the journey is the important thing, not the destination and now it's up to us.
Looking for his stuff and wondering which physical route he took through this metaphysical quest may have some point to it, but I'm not sure what. As above so below; maybe there was a real Moses, but does it matter if his lesson is ignored? Would it matter anyway? People in all Judaic religions (and the Saudi version of Islam is distinct from other Islam) would like to lay claim to places where things physically happened and it's caused and still causes suffering and death.
Maybe it's time to cross the sea.
*Red is also linked to the Hebrew word adam, which means 'matter' and can refer to mankind in our physical form, mud or land. It means material stuff.
Additional information: the etymology and meaning of the name Moses in Hebrew.
The amazing name Moses: meaning and etymology
I disagree with the people on that site on some points, as they have their beliefs and I have no fixed belief, but they are a
treasure trove of information.
Edit to edit: For some reason if I mess about with the text size in an edit it's impossible to put it back again! Some sort of glitch?