I wish I had tried to consult this manuscript when I was last in Honolulu. It may have some answers about translation:

Liliuokalani, 1897. "He Buke Mele Hawaii i Haku Ponoi, Hoonohonoho a Mahele Ia a Liliuokalani o Hawaii. He Mea Hoonanea no ka La Walea, Wakine-kona, Mokuaina o Kolumepia,"
(A Book of Hawaiian Songs Composed Personally, Arranged and Divided by Liliuokalani of Hawaii. A Pastime for Leisure Days. Washington, District of Columbia).
Unpublished manuscript, State of Hawaii Archives.

I am surprised that this book has never been published.