There are no restorations that I know of, only bootlegs. I upped one to MySpleen about a year ago. Just so you know, while Adywan's preservation is fantastic, it is inperfect in at least one place.
http://originaltrilogy.com/forum/topic.cfm/Prequel-Bootlegs/post/611716/#TopicPost611716
I recommend the Japanese laserdisc also preserved on MySpleen.