I would recommend running with the Kickstarter idea just so the price tag or technological purchases with man hour estimates is out there.
Anyone speculate an estimate? 50k a movie, 200k a movie? then 2 hours man time for each frame clean up?
Going for the best sequence of events, I would imagine the Library of Congress 'Star Wars' copy being loaned to archivist Rick Prelinger, who'd figure out how to get the clean up work crowdsourced through Archive.org.