A little digging has led me to the solution of the "Vacation Cruise" song listed on the Archival soundtrack. The original title of the song is "Fanora Meherio" and was performed by Terii Taputu in the film. You can find his website here: Terii Taputu "Fanora Meherio", and a blurb in French describing his participation in the film with the song.
Very glad this is one mystery we can lay to rest!
Very glad this is one mystery we can lay to rest!