In reply to nimajneb:
The OAC Todra Topo that you linked to is unavailable because a second edition is about to be released - should be available by the end of the month on both of those sites.
Failing that, there were a few copies of the first edition in Kasbah Lamrani in Tinghir, or there's the local topo available in the gorge (though it's expensive for what it is).