Actually I've been doing more playing around with this tonight.
It's not a time stretch of 103 (although that's pretty close).
Here's what I'm working on right now (no guarantee this is perfect, but it might be as good as it gets for right now):
First of all, since technically the recorded wav file is just repeated over and over and is actually 12:25:39:243 (2,147,283,647 samples).
I cut the garbage off at the end in Soundforge.
Scene 1: 2876 DNG files. AE says the video length is 01:59:20
The audio file, after the garbage has been cut off at the end, is 1:53. So now I need to stretch 1:53 to 1:59:30. This is 105.9 and lines up perfectly, but I'm sure it will be slightly behind in the beginning of the clip and slightly ahead at the end.
So I'm only sharing this tidbit for people who shoot really short scenes - this might help with onboard. But almost 6 seconds of audio is just too much to lose - I need to do some more investigating.