PDB was so kind to send me the unsynced (bitperfect) Laserdisc audio. I converted the sampling frequency to 48 Khz with iZotope RX3 and cut the file with Audacity. It is in sync with the DCP Blu-ray now. I will upload it later today.
Btw, if anyone wants to sync any other audio tracks from the official Blu-ray release, just add a delay of -2343 ms to the audio track in tsMuxer. It will be in sync with the DCP version then.