Tom, I can send you the old one I built, for the cost of the shipping. All you would have to do is wire up the plug and connect the add on board you built. I can also sell you one of the newer ones I have been building that are plug and play. They come with the plug to go directly into the SSM port. It has a transmit and receive LED so you can see the status, and is mounted in a project box to protect it. Selling them for $70+shipping. See the pic below.
