After effects: Adding visual callouts of currently playing audio files with a source text script
You are making your and your friend's job much harder than it would have to be. Try exporting an xml (if it's possible to read audio-xlms in protools) or, which would be much easier, your friend switches over to audition. That way you can simply load your audio-timeline into audition and it's all there. Trying to recreate your mix is a terrible idea as you will risk damaging the synced audio of dialogue etc.
Alternatively, if none of that works, assign each audio channel a role (such as vox, ambient, wind, punches, etc.) and export each track on its own. He could then import every track which will be in sync just the way you had it and slice the individual tracks up if he wants to.