If you have a product that truly isn't working for you, you should contact Refurb Supplies. They have custom-made some modular wall mounts for other systems that are mighty impressive. One that they made for Nortel even has a built-in level.
These folks aren't shy about making anything we ask them to make. Perhaps a moderator here should contact Matt Hyndmann at 866-789-5656. I'm not kidding when I say that if you need it, they can make it. It will probably be of higher-quality and lower cost than original factory equipment too. They may already have something available, so check out their web site at
www.RefurbSupplies.com to view their current offerings.