"Ahu" are stone platforms on which many moai sit. There are 313 known ahu and 125 of these carry moai. The biggest, Ahu Tongariki is 220 m (720 ft), and had the most (15) and tallest moai.
I'm not a writer. I think I can write short stories and poetry, but film writing, brilliant film writing, is a talent - you can't just do it like that.