If you are dead set on having the laserdisc versions. I have uploaded my preservation of the 97se laserdiscs onto the spleen. They are synced to the theatrical DTS, include the laserdisc 5.1, etc.
I don’t normally go around promoting my laserdisc preservations but I’ve seen a lot of people ask for these lately. The link below will give you an idea of what you can find.
http://originaltrilogy.com/topic/Star-Wars-Laserdisc-Preservations-See-1st-Post-for-Updates/id/15283