I guess that's the attire when in Marrakesh ay?
I have never tried to get anything on e-Bay - I don't think I have the patience to sit there and bid for something I want, only to get it snatched away (or maybe I'm not really getting the whole concept down)
Criossa: Nordstroms has some wonderful tunics, bought one the other day ...
http://store.nordstrom.com/category/...origin=leftnav and I love their own Caslon cropped pants, a linen pair I bought a few years back is still my favorite.
Enjoy your trip