Not saying it will work, but it only takes a few minutes to try…
AMA link to the original audio rushes in a new empty bin. (Yes, you can AMA link audio files..not commonly done, but it’s possible)
Duplicate the final sequence and put it in its own bin. (Don’t mess with the original, close its bin immediately)
Select the duplicate sequence in the bin, and then all the original audio rushes clips in their bin.
Using the Relink command, attempt to Relink the duplicate sequence to the selected original rushes based on Source File Name. The original file names are retained in metadata when the editor first imported them, and the files are the exact same length..so it’s possible the sequence will link perfectly to them.
If the Relink is successful, export a new AAF. I have doubts this will work, especially given the lack of time code, but it’s worth a few minutes to try.