Here is a folder containing the video with only the dialogue, an incomplete stereo sfx track, and the stereo score track. Place all three into your video editor and you can mess with the levels to your desire. My video editing software can only output stereo audio so I’m sorry if more work is created than necessary on your end.
https://mega.nz/folder/KP5gzRAA#E3j5iNxjUcccgPIylrMVYA
(Note: I only ever did the swinging sound effects for Anakins saber, so you may want to add more sfx for Obi-Wans)