Their is an unabridged audio recording on Heir coming in September from Del Rey books on CD.

Not sure how helpful that might be.

I think since the comics are pretty much abridged not sure if they even used the same dialog as the books, probably a totally different script.

Would have to create new bubbles for the characters dialog to have the actual book readings. Even if you could find the lines in any book recording abridged or unabridged, the only other option would be to have someone do the reading or act out the lines.

That or do a crazy thing like a fanfilm and get Lucasfilm to come down on you even if you had the money to get it made. That and Del Rey would send a cease and desist.