Did you check Nexus? I'm aware of the issue finding mods... some of my favorite websites for them were taken down =;( This is why I store the original downloads for mods on a separate hard drive... along with a backup to thumb drive. Cuz, it seems to happen a lot with older games. I believe with the Star Wars franchise changing hands, it led to some restrictions on what kinds of content could be hosted on 3rd party sites... idk. That's my suspicion why some were taken down. So, now... Nexus seems to be the best place for most mods on older games.

Old websites with little traffic die. That's just what happens.

I tried to get it through Nexus but there were too many third party virus filled add on's in the way. Why can't they just let you download the file and install it for use like it used to be?

Isn't it up on deadlystream?

I didn't see it but, here's a link to their mods for KoTor TSL;
https://deadlystream.com/files/category/5-mods/

Oh wait, it's cuz I narrowed the search too much. Maybe this:
https://deadlystream.com/files/file/503-kotor-savegame-editor/