Grab any released data set, repack the anims/gfx into Index 2... replace the .idx/.dat files if necesarry or adapt your client where needed.
1 == Models
2 == Anims & GFX
3 == Sounds
4 == Maps
Edit: Regarding repacking, most/any 317 PI client will have a "repackindex" variable or method somewhere to uncheck or change.. just look at it, put the anims in a folder named index3 within your cache and run.