To answer your question, I'm going with the tanish-brown and slate blue camo scheme. I temporarily have had my fill of NMF, and besides, since Mozzys were made of plywood, it would have been painted silver, not had a NMF. One overall shade of silver paint doesn't seem as interesting to me as either NMF or the camo scheme. I have to agree though, the blue in the camo seems like it would be more obvious than just silver. perhaps they were going more for the disruptive type of camo (that makes your target harder to identify) than the blend-in type. Or maybe they were going with a comprimise over flying over desert and flying over the sea?
Here is a profile of the aircraft I am going to do:

this is as it appeared just before operation musketteer. I am assuming it received its yellow and black stripes in a similar style to its squadron stable mates for the suez crisis.
BTW, most profiles suggest the tan and blue over a light gray bottom, but some pictures look shinier or more mettalic than gray would be. For example, the one picture actually depicting my subject:

Does anyone know if the camo might have been sprayed directly over the former silver color of the aircraft, and the bottom left in silver?