If I knew I could edit the DTS I'd consider a version 2 with DTS & DD 2.0 but every Google I've done tells me it's impossible without decoding editing and re-encoding.
To be fair, if someone provided me with the 2.0 audio I would consider adding it in since I still have all the parts.
Edit: Actually in all fairness, it is theoretically possible to do this project. I'd have to edit the VIDEO by adding and removing frames to sync it with the DD2.0 track and once it is it could be muxed with the DTS 5.1 track.
That being said, I really am not in love with the idea of doing that. It means I'm intentionally adding and subtracting frames which might be noticeable. Also it means cell times would have to be manually shifted and the DVD re-reconstructed to match the new celltimes.
BUT, it would be a disc with the DD2.0 original audio, and the DTS and DD 5.1 audio mixes from '97. It should all fit on a SL disc.