Stay: Accommodation at the local hotels (see website below) are from £10 per night B&B.
There are a couple:
Tafraout Pocket Guide 978-0-9567288-5-2 or the definitive 978-0-9567288-2-1
Transport: The area is approx 150km south of the airport at Agadir, so a car is essential.
Lots of info at the Climb Tafraout website.
UKC article Jebel el Kest