Isolating KH Audio Help

Hello! I'm hoping to do a KH video project where I change the background music of certain cutscenes. As such I need just the dialogue for these scenes, I have found lines for most of KH1, all of 2 and 3D, but I need help finding BBS and CoM audio (and if it's at all possible, the Days and Coded movies). I've tried isolating vocals myself but it just sounds so bad. Does anyone know where isolated dialogue for BBS, CoM, Days and/or Coded can be found? Or any advice on isolating the audio?