I am an American with a non-distinguishable accent (I grew up overseas, so my accent does not match any particular region in the USA.), and have spent 10 years in customer service and creating phone greetings for banks, insurance agencies and small start up companies.
Since you already have the script down, it shouldn't take but a few minutes to correctly record and send the greeting to you. Did you have a particular format you prefer?
Feel free to contact me at mishaela@solutionssupplied or call 864.633.0753 if you'd like to hear my voice before deciding. Thank you.