A good speaker and happens to be an elected MP for Westmoreland Dr Wykeham McNeill would be my choice for a Jamaican to speak. You might contact him through https://www.facebook.com/WestWestMP/
Of course, our own fearless Rob is certainly a wealth of experience and knowledge. We each have our own level of experience and knowledge (some a lot more than others) but most don't live and work in Jamaica. Rob does but whether he has the time or inclination would be the question. Wouldn't hurt to ask though.
Just my opinion.