I do have a mediocre mp4 version of Patoral uncut. I'm not sure it's as racist as people keep thinking it is, but that never stopped Disney from censoring before.
As far as stuff to add, might I recommend segments that were intended for Fantasia 3?
There is DVD footage of Destino, Little Matchgirl and One By One. I've never seen Lorenzo anywhere at all (by I'm still looking).