Laserdisc is the best overall resource for the O-OT. By "super 8", are you referring to a camcorder or to film?
"Tactile Transducers: AURA "Bass Shaker" AST-1B-4 x2"
Dude! No wonder you wanted to watch the first 5 minutes! That SD flyover must feel SWEET! LOL
BTW, did you ever figure out where the layer-change/disk swaps are?
"after seeing the "Lucas edition" I feel quite bad thinking how great an official original trilogy DVD would have been."
Sad but true. The transfer is georgous, but the content is unacceptable.