I traveled with an M6 and an M4-2, Winder, a 28mm Elmarit, a 35mm Summicron, and a 50mm Sumicron, 400 rolls of Delta 400, lots of batteries, and UV filters for all my lenses.
I used a canvas sack and had a plastic bag with a rubber band inside for dust. I also covered my cameras with black electrical tape to prevent theft and damage. Egypt was a big problem once in that one of the sail boat operators near the Aswan high Dam flooded the boat and out I went with all of the above equipment into the Nile river.
Sherry Krauter got a hold of my stuff when I returned, and said "that wa the cleanest dunking I ever saw" meaning that part of the Nile had pure water. No rust, onnly clean, dry and 2 new shutters. They still work. That was in 1993!!!! This is another point!!!
The unexpected can happen in this part of the world. Be prepared. People are generally nice, especially if you show interest in their customs and foods. I always had the attitude of an open mind, and that I am the student, and they were the teachers. Nobody wants an ugly American with a German Camera. Make sure you have a spare system hidden in your hotel safe, or with a friend. I would have a 35mm Sumicron as a backup to your other 35. In 1946, my father was in the Navy, and was at a port call in Alexandria Egypt. He was at a bar, and a man with a motorcycle offered him a ride. A mile or so down the road, he tried to kill my dad by pushing him off the bike. My dad (Joe) held on to the man saying igf he dies, so will the guy that tried to kill him. Funny how when I went there decades later, history repeated itself!!!