I know you’re only keeping the 2.0 optical audio, but it’d be neat for you to add the 2.0 PCM Laserdisc track from the Best of Roger Rabbit release as an option.
https://www.lddb.com/laserdisc/06928/5259-CS/Best-of-Roger-Rabbit-TheI actually captured the audio for my LD preservation. In fact, it was already from my regraded and recropped version I made for privacy concerns.
See above. Not possible with my skills. You can try though. Good luck