We were working on this a while ago but then we just stopped
I've put it on github: https://github.com/fionnn/tf-texture-pack
If you'd like to use it you can, if you'd like to edit it you can as well, provided you keep the credit in credits.txt and splashes.txt
It has some custom music discs as well as some other stuff we added that has faded my memory since we stopped working on it
Enjoy