Well, a lot of editing needed to be done. I had both, the original and the Laserdisc audio, open in Audition and they weren't in sync every 2-3 mins, sometimes even after a couple of seconds. The files are still not 100% in sync now, but I had it zoomed in to the max and these differences were just a couple of ms... After a while I said to myself: F... it! Not only because A LOT of editing had to be done for a 100% perfect sync, but also because I came to the conclusion that it wouldn't be visible. Maybe I'm wrong...
I tested it (didn't watch the whole movie again though) and to me it seems ok. I can't speak for the whole movie, but the scenes I saw were ok to my eyes and ears. I made 44 cuts (even time stretching once, but it was just a couple of ms. I didn't hear a difference), so it wasn't like I just left it alone most of the time.
I converted it to flac and dtshd and uploaded it to a file host. Everyone is invited to PM me for links. :)
If there are some flaws, please let me know. As I said: I didn't watch the whole movie again yet. I'm also far from an expert in audio editing...