I think I got a chance for the role since my voice slightly deepened over the summer. I could supply a sample of my voice once I set up my desk area to be bounce-proof. Also, what if there were a group of people voicing different add-ons, say about 3 or 4? How'd you think about that? You could get a high-pitched, a medium-low pitched ( such as I, ) and even a female voiceover.
PM me if you think any of this is great, and I'd be willing to assist you.