I would like to stay a couple nights in Merzouga and am traveling through Morocco as follows: Casablanca - Marakecch - Essaouirra - Fes. What is the best (and most inexpensive!) way to get to Merzouga from Fes? Or, do you suggest I leave to Merzouga from another sight? I probably will not be able to spend on a driver, so bus/train suggestions are appreciated. Thanks!