I saw that event as part of a program on East Island, they did indeed rock the statue from side to side, and it ‘walked’ just as the natives described to Heyerdahl.
There’s a pdf showing the network or roads constructed for statue transportation:
http://www.csulb.edu/~clipo/papers/LipoAndHunt-2005.pdf
Easter Island, not East Island. Silly me.
Thanks. I’ll take a look.