The "Player" sounds folder contains about six minutes worth of audio (twice that if you include the Russian version). It would take a pro about 30 minutes to record that. On a bad day, an amateur could get through it in a couple of hours.
Honestly, if someone were to record the full player script as a single long audio file, I would edit it and pack it into its proper folder structure. I edit audio books for a living, so it would be no problem.