Sorry, I'm not that technically-savvy as you, so I can't (for the moment) provide all these thing, unless someone will step in and help me with them...
Well, my source will be an HDTV version that *should* be better than the iTunes one, and I'll add the laserdisc english PCM and italian DVD soundtrack.
If you can, as I think, add all those features to the project, I'll leave it to you more than willingly; if you need my help, though, let me know!
At the end, the most important thing is to release a project; who will do it is not that important IMHO. Do you agree?