Dude this is a amazing. Archeological level find that I think deserves to be preserved.

I'm pretty sure you could message Snowman on Discord ( username: fff4153 ) he was developing https://toribashtexture.com to preserve this in a way where the textures are safe and they're manageable

The upload process you could also do manually but it's a lot so perhaps some automatization could be found don't let ts die with you bro this is the type of shit we need