IIRC, the mono Despecialized uses came from Jaxxon’s 16mm print, which also was the basis of Puggo Grande. There was a PAL tv recording of the mono known to exist prior to that.
The super 8’s have been discussed in the preservation forum over the years. Here are some pictures of interest.
http://passionesuper8.blogspot.com/2011/09/star-wars-episode-iva-new-hope.html