Even a 35mm of the theatrical cut would be awesome. I'd love to see that get scanned someday...
As I have said, I doubt any uncut prints exist ANYWHERE. From what I've heard, even Don Bluth doesn't have an uncut print. (I've heard conflicting stories about whether or not he has/had one of All Dogs Go to Heaven, but I believe he/Gary Goldman came out and definitively said that they do NOT have the deleted scenes of TLBT. As I said before, they are either in Universal's vaults, or they are lost.)