For anyone interested, I released some randomisations of Pokemon Colosseum and an incomplete hack I call "Pokemon Mausoleum". The details are over on the project pokemon forums but here are links to the files and brief instructions are included in the .zip files.
Colosseum Randomised
https://www.mediafire.com/download/tcubje7hchq560j/Pokemon+Colosseum+Randomiser+Patches.zip
Pokemon Mausoleum
https://www.mediafire.com/download/3rrnk6oa2xu1wql/Pokemon+Mausoleum+Patch.zip
Colosseum Randomised
https://www.mediafire.com/download/tcubje7hchq560j/Pokemon+Colosseum+Randomiser+Patches.zip
Pokemon Mausoleum
https://www.mediafire.com/download/3rrnk6oa2xu1wql/Pokemon+Mausoleum+Patch.zip