Why did you delete/Private the page for the full game version instead of just restricting/removing downloads for it until you could get SFX replacement to work?
Viewing post in OFF Prologue: Restored comments
I ended up joining ferase's team for the off ost restored mod, and did sfx replacement for that mod instead. I liked their work on the music replacement, and it was easier for everyone if we just "merged" projects, if that's the word for it.
https://ferase.itch.io/off-ost-restored
you can find the work i did here...