I posted this on GK4campaign too, but thought I'd better expose it here too, to give it more traffic.
For the past few weeks I've been re-building the GK3 script out of the game's .YAK files (which contain subtitles, matching audio file name, additional soundtracks and lip-sync). I've read every single one of the 7000+ files and copied the contents, and ordened them in script form.
There are still a lot of lines I don't recognize, and of which I'm not sure if they're in the game or not. To an extent I can try out all of them myself but there's just too much data.
If you'd like to get a peep at what I've been working on, and would like to give a hand, please download either the ODT- or the DOC file I've created! You can find them on my ADrive account.
ODT script location: http://www.adrive.com/public/01114cf59cc266821137f5c533926ddb3a01ddf46e2512f6d60207afee0260b9.html
DOC script location: http://www.adrive.com/public/d9cc106c61f2b1fc8ac8cd23b86461af2aafee5a2a450689ec9eaa78511750af.html
Feel free to forward this information to any other GK3 player, or to post it on other forums!
Please note that these documents will be removed from ADrive automatically in two weeks time.