SMF requires each emoticon to be in it's own special folder in it's install, so I'd have to reupload all the sprites. There's also the matter that each one would have to be added into the emoticon list individually one by one...
As Agastya said, a lot of time. I personally don't see the problem with just embedding the sprite dump sprites since, as Agastya said as well, they're on the same webspace (supersanctuary.net)