Hi there!
As native English speaker, I can provide you with a professional English (British) male, voice over for your project as well as a number of character voice styles that would suit the hoarse, old man you are looking for. I'd be happy to provide you with a specific example, but also have standard audio samples available on my profile along with 5* feedback from a growing list of satisfied clients.
I am available to begin working immediately and look forward to hearing from you.
- s