Interesting video! By chance, do you know any recordings in the voice of Shinji Hata, who hosted a George Lucas exhibition in Japan in the 1990s? I don't think that Shinji spoke in this video, I think his interest in Star Wars came later (but I am not sure). I have the beautiful book From Star Wars to Indiana Jones: the Best of the Lucasfilm Archives by Shinji Hata and Mark Cotta Vaz from Chronicle Books. I heard that Shinji now lives in Tokyo but was unable to reach him. I have inquired with Lucasfilm about old recordings with Shinji and the 1990s' George Lucas exhibition but have received no reply.