Info Wanted: Pokémon Heroes - a color fix?

Not sure if this would better fall under requests/howtos/tech discussion.

This is the US version of the 5th Pokémon movie.  It’s not that badly done despite the first couple minutes being a bit of a hackjob, but there’s a BIG problem.

I have (copies of) a widescreen PAL R2 and the Japanese R2 for this movie.  The dub stills are from the NTSC R1 which is pan and scan, since it was quicker to use AVIs.  The problem should become readily apparent: The dub video is BLUECAST! (This is a problem on the PAL DVD as well.)

The stills here are scaled to 25%.  Here are the unresized ones.

I’m still thinking what would be the best way to handle this, as apparently an Equalizer or HSV won’t do the job alone.  Most likely I’ll try to color fix the title and credits, fly in the replaced footage where I can find it/fix it where not, recreate the fade, and then use Japanese footage for most of it?