Probably would be easier, cheaper and quicker to find a Zed owner near by and ask nicely to swap clusters around to make sure it is faulty clutter? And then if it is, find a damaged Zed with similar mileage (I believe mileage stored in the cluster?) and just replace whole thing instead of trying to fix it? I'm sure Zedmanalex with have couple of spare ones, as well as Jon@Emperor, ClarkMotorsport or Keyser/Buster at Zed Shed.