If this could be released in the form of an audio stream synced to the official DVD video, I'd be a happy panda bear indeed!
Then it would be a simple matter of remuxing the video of the retail DVD with the Backstroke audio and subtitles and I'd be in ridiculousness heaven!
Which reminds me that I need to step up my efforts to obtain a Malaysian ROTJ bootleg with similarly odd subtitles from a person that I made a copy for. (since my original was stolen... grr....)