I am also late to this thread, however I just returned from 10 day trip to Morocco with my wife and two children.
I took two M6 bodies with grips, and my three favorite traveling lenses, a zeiss 28mm, 35mm 'lux, , and an elmar 50-m current version, all in a Billingham Hadley classic bag. I like to shoot a lot and took plenty of film- 20 rolls of Fuji Superia 400 shot at 320 and 20 rolls of Reala. I also took about 6 rolls of XP2 BW. I also took my small sekonic meter, extra batteries, lens cloth, and a black sharpie wrapped with a small amount of red and black gaffers tape.
It ended up to be a nice compact set-up, the Hadley was large enough for the two cameras as well as a bottle of water, note pads and pencils for the kids, guide book and hat.
A couple of observations; although Morocco is a very colorful country by day, BW film (or color converted to BW) is great for the evenings. I loaded one m6 with 100 and the other with 400 color and traded off depending on the light. We encountered a couple of overcast days and having faster film, particularly in the medinas with limited sun, was a benefit. The visual complexity on the streets, alleys and small shops were a better fit for the 35mm and 28mm, and I rarely used the 50.
Since shooting people is difficult in Morocco I did a fair amount of street shooting from the hip and chest. The meter was helpful for this because I could take a reading, set the lens and fire away w/o bringing the camera up to my eye. A small meter also looks like a cel phone, which everyone has these days.
Sorry for the longish post however if anyone is planning a trip to Morocco, email me if you have any questions. We had a great local guy who helped with everything from guides, cars and drivers, travel suggestions, etc.
Next steps; get the film processed and up on Flickr, do an edit for an I-photo book, and continue to save for a M8...