Hotels and alternatives
There are a handful of hotels along the Oued Ourika, but these tend to be overpriced.
Restaurants and alternatives
Several serving opportunities, most cafés doubles as tagine restaurants. Quality can be excellent, but prices are often a bit above standard.
Change money
Nothing. Do this in Marrakech.
Transportation
There are buses and shared taxis that do the stretch between Marrakech and Setti Fatma. It should be fairly easy to get off anywhere you want, but you might have to do a bit of waiting when you want to move on.