You need voice actors eh? Well you are in luck my friend!
I am Jalokim, a voice actor who has been in MANY different productions.
I can do a wide array of voices, and I guarantee that I can cover all the male extras.
I also have a friend who is a great sound editor, I'm sure he will want to help.
Also, does the Narrator HAVE to be female? Because if not, I can do the narrator as well. (The only voices I can't do are female voices.)