For screening and fencing trellis it is usually best to hire a contractor to install or custom make to your requirements. A quality contractor should be able to work with you by either supplying ideas or taking your own ideas and making it happen.
When choosing a contractor it is important to have inspected their workmanship to make sure the quality of their work is up to your desired standards. Installing screening and fencing isn't cheap so do a bit of research first before hiring someone.