Actually, Seldzar, I found a program yesterday that CAN edit animation files...however, it's in Japanese, and it boggles me. I can't make heads or tails of how it works.
On that note, Love Goddess...you make the most difficult requests, heh. I spent a few hours yesterday trying to edit your new Ark gear, and I ran into a serious problem. You see, the NPC character models are actually all one piece. That means I can't export only the armor, or only the face, and stick it onto your Ranger AF. Worse, FFXI Model Viewer re-imports the files in a very specific manner...so when I edit the model itself to eliminate what I don't need (saving a file for the gloves, boots, face, etcetera) it tries to import the reduced file as the entire model. The results in an incoherent and sometimes scary mass of spiky pixels. There may be a way around this, but I haven't seen one yet.
The animation changing is plausible, but as you may have read above, the program is very confusing and not user-friendly.
The same goes for a floating Taru, Hanzotori.