I now have a temporary archive of the files I've been working on--feel free to PM me for a link. The include French and Italian audio (GOUT+extra score), and Castilian (corrected GOUT with and without the extra score). Lossy and lossless for all tracks.
As for the extra score, I still don't know what exactly I've created. A theatrical reconstruction, or a nice-sounding THX mix. Who knows?
I'll have these up for a while, and will eventually take them down because they're big. For myself, I've concluded that I really don't like that extra music, and will only replace my personal copies with them if I am more convinced than I am right now that these are truly the theatrical mixes.
The Castilian audio was still a bit weird to work with. The two GOUT sources I had did not have matching dynamics, so I used the old weird mix with Latino audio for most of the audio, because of its greater dynamics, and included only the fixed compactor section from the 100% Castilian mix, because it was more compressed. IMO they still blend way better than my previous fixed audio using the Blu-ray mix.