Well, you'd need to do more than just sync it up, I'd think. The best courses I can think of would either be to sync up the track, while removing extra bits to make it fit, and replacing SE movie audio with an OOT source, or take one of the OOT mixes and plop in descriptive audio snippets where they belong. Otherwise, what's the point of including it if it is full of SE changes like Jango's voice, new Emperor, alternate takes (e.g. not "You're lucky you don't taste very good"), Vader's nnnnnNNNNNNNNOOOOOOOOOOooooooooo, freaking Jedi Rocks... (may have thrown some '04/'11 changes into my examples, but whatever) Anyway, just keep in mind how much work you're facing with the options available, and save yourself some pain by picking your ultimate solution from the get go.