the quality of derann film prints is supposed to be really good if you can track one down for less than a 1000.00 dollars. full feature versions of both star wars and jedi have shown up on ebay before. never empire strikes back impossible to find.
on there website they still have jedi if you have 700.00 dollars.
i have seen 8mm flat prints of all three films complete feature show up on ebay as well. they did not sell because they were not scope. the guy selling them for cheap and they never appeared again. I could have bought each for between 25.00 to 50.00 dollars. I have seen very rare variations of the ken films also a 16mm test production reel black and white silent empire strikes back. There have even been a couple of french releases on 8mm in cinemascope, I even saw a ken films star wars one. as far as I now no such thing exited. also the mexico 8mm star wars. and of course krieg der sterne the cut german release of star wars and empire.
single 35mm reels of star wars appear time to time. one on there now is faded to pink color. I have also seen pieces of 70mm reels or film cels cut from 70mm reels show up once or twice.
I am still kicking my own ass for not bying from star wars to jedi for 150.00, as it was a low fade lpp print. and i lost the auction for the unused revenge of the jedi national screen service trailer.