Build a Joomla plugin based on a existing environment

Hello, I'm searching for someone that can rebuild a existing environment write in PHP to a Joomla 1.7 plugin. The environment that i have is a simple PHP site that can see on this test page -> [login to view URL] This website containt a few points: Front: - The main page, this is a overview with al the location points that is insert in a database ([login to view URL]) - The overview page connect to a unike location, this contains site info and show some info about water temperatures and depth info about a lake ([login to view URL]) Back: - a admin page where it's possible to made a location with a uniqe API key for sending JSON data (temperatures) to this unique location with a small formula for calculate a depth. (user info can i send when it's needed) So this comple site must be build to a Joomla plugin so the data is easye to use and change. When you have a question please contact me. Regards, Dieuwert