The problem is that the dialog file isn't ordered in an easy to read 'script-like' format (See image attachment). Questions and responses are put in different blocks and stuff like that. Thus just trying to read it to reconstruct diagloue and all the possible options for dialog is a serious pain in the arse. I've reconstructed a few of Atton's and such in the past and meh...yeah, pain in the arse.
There's a couple things:
This mod supposedly contains a copy of the K2 dialog.tlk file. You can open the file with WordPad or something and scroll down till you start seeing readable text and start reading/deciphering.
This page has some dialog editor tools that supposedly let you read the text in the file in some semblance of order, but I personally have never been able to get it to work (the DLGE won't even 'recognize' the file at all, for me) - I have no idea why. I've never been able to get any of those little changes to the .ini file to work either, I've always figured it some weird game-country-CD version thing.
Far as I know there's no 'offical' available script beyond this program file. Anyway, if that all fails and no one else more knowledgable than myself has any suggestions/solutions, try a search on Kotor2+dialog.tlk, never know.