Hello,
I'm a video game music composer, although I do have experience with orchestration and music production in general. I can provide signing and a voice over, depending on the voice style you're looking for specifically. I can organise a session vocalist if you have something specific in mind. I've budgeted as though we would need to hire these extra vocalists but if I can do it myself it will be less overall.
Do you have any specific examples of similar pieces of music? That way I'd be able to provide relevant samples of my work and possibly a demo.
Let me know!
Cheers,
Corey.