Hello
I am looking for the sheet music for the following song :

Song: Gray Lady (or Tir Na Mban, which seems the same)
Instrument: piano or strings
Anime/Game: from the movie Avalon by Oshii
Artist: Kenji Kawai

I would greatly appreciate if someone could help me to find this song.
Thank you in advance for your help !

Greetings from France :)