Hi there,
I hope you are doing well!
As a Brit myself, I can assure you quality work from a native speaker.
In regards to your specific request, I just wrote a similar speech for a previous client that was presented in a Bat Mitzvah.
When it comes to engagement, as a fluent English speaker, I can guarantee fluent work and the avoidance of language barriers when it comes to communication (both that between you and I, as well as that between clients).
I would be more than happy to organise a call in order to discuss your specific requirements and ensure that I cater to your needs when it comes to this specific project.
Thank you very much in advance,
Best,
John