Just to clarify my error, it was the 2006 releases that had the bonus LD transfers.
everything youre looking for has been preserved, and there are dedicated threads here on the OT. I dont have the time to look it all up for you.
I do recall "project Blu" being cleaned up HD upscales of the 2006 DVDs, and "TR47" being straight rips of the LDs without cleanup work.
There are many fan edits and preservations out there, with various differences and sound mixes. You just need to look.
Edit: ok so i do have time . Did you notice the project index thread?
http://originaltrilogy.com/forum/topic.cfm/Project-Index-Star-Wars-Preservation-and-Other-Projects/topic/2450/
TR47 is what you want
http://originaltrilogy.com/forum/topic.cfm/The-Cowclops-Transfers-a-k-a-the-PCM-audio-DVDs-Row47-set-Info-and-Feedback-Thread/topic/1364/
The bonus features and interviews you want are also mentioned in that thread.