Hello Mr. Bird,
I'm a cofounder of a startup that is looking for a highly qualified individual such as yourself to develop a custom CMS for us. Our website is a multi-industry booking service, and currently our prototype runs on Joomla. However, we want our system to be able to be customized in any way, shape or form that we may require, so essentially the task would be implementing the designs and functionality we have currently into a customized CMS with some initial functions that I will obviously describe to you should you want to work with us. We would love to build a long term working relationship with you.