Children's Charity Web Design

Hello, I am looking for someone to build a Joomla template for one of my clients. It is a site for disabled children and we are looking for a professional template from which to work on. I am hoping that this won't be more than 20 hours work. Please feel free to contact me if this isn't the case or you need any other details. I have attached a picture of the Charity's logo encase that helps. Many Thanks, Luke Hackett