I'd imagine the logical way to do it would be to start by removing any singing sequences. The only music sequence that could maybe stay is Lumpy watching the acrobats. Keep the cartoon. Lose Harvey Korman, or at least cut his bits before they get repetitive. Keep Art Carney doing his Norton schtick, since we still need a little humor in there and it's a nice nod to the actor's past work. Replace the opening credits with a traditional SW style scroll.

Beyond that would be the technical stuff - replace all the FX shots so they're not just re-uses from the film and clean up some of the Kashyyyk outdoor mattes, and of course a sound mix to clean that up in spots.