Hi!!! ( "originality a must", like what you're asking )
I'm very interested in working with you. In your description, you wrote that your looking for a native speaker. Though I didn't grow up in the US or Canada, I can confidently consider myself as a native english speaker since I've been using English as my primary language since I-can't-remember-when and I'm more comfortable using it.
I hope you'll consider my bid.
Thanks and looking forward to working with you.