Hi
I've tried doing a mod like this myself. I might have added some that you missed and also some non anime orchestral remasters from the "Harmony Of A Champion" album. I plan to work on johto next and get to the other regions soon after.
https://www.dropbox.com/scl/fi/r2sukzhhzus1a672onxrr/Nostalgia.zip?rlkey=cnp9swtv2gzws1vlsi9vmy88k&dl=0