After a long time testing and playing with the code, I finally got down and did a load of work on the dashboard unit.  This is the result, and apart from some small code changes and a cover, its ready to be installed and connected up to the fuse box, tacho feed and heavy duty relays.

In hindsight I would probably have changed the layout, and who knows maybe I’ll make a version 2.0 in the near future as most of the components I can move over quite simply.