The better would be to create a custom video based on the Blu-ray and DVD uspcales of the one or two shots for the Diane Venora speech. And then, sync the audio to it. Why not the entire LD track? Sure, but if that means no 5.1, then it would be cool to use the couple missing lines from the LD to resinsert them into the TrueHD track, the way it was done for The Good, The Bad and the Ugly or Last of the Mohicans.
I have the Region B Blu-ray and the 2 French DVD editions, so it's PAL and presumably has better definition than the US NTSC disc. I can give it a shot videowise and, if unsuccesful, I can provide someone qualified the DVD shots to create quality upscales. But I wouldn't know anything on how to work on the audio.