My name is Morten Fjeld, of Fjeld Audio. I'm working in audio restoration and enhancement, as well as editing.
Whispers can be challenging to "clean up", because of the lack of tonal content in the voice when whispering. I can certainly try to bring out anything that's there, and I definitely have the most overpowered tools for this task: Izotope RX 10 Advanced.
I'm discreet of course, and I understand the nature of the recording.
You're right that it shouldn't take long, assuming there's not a lot of manual editing and cutting etc needed to get the job done. Usually this isn't needed, especially with the recent AI based tools I have for the job.
Now, all of this comes with the warning of "no guarantees". I don't actually know that the job is possible until I try, as the recording just may not contain enough "data" to retrieve. If that is the case, we just cancel the job and you don't have to pay for it.