The D800 and 14-24 will make you very prominent indeed, and you will be too close to people to photograph them in safety. I agree with the earlier comments to the effect that Moroccans do not like to be photographed, and sometimes make this clear in a very forceful manner.
I also agree with the recommendation to hire an official local guide. Apart from the knowledge you will gain from a guide, he will also provide a lot of protection from touts, and will get you much lower prices on taxis, etc. He may also save you from some problems - when we were in the mountains near Marrakech our guide strongly advised against photographing the local people, on the grounds that they would be so angry that they might attack us. I believe him.
I suggest that if you want to do any street shooting, take along a small camera which will be much less intrusive, and keep the D800 in the bag. There will be lots of other opportunities in Morocco to use the D800.