I would sort out all the arguments and see which belonged to fear and which to creativeness. Other things being equal, I would make the decision which had the larger number of creative reasons on its side.
"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.