I decided to bite the bullet and ordered the Dakota Digital instrument set. I like the idea of US product with technical support if needed.
I know it is not a GPS based speedometer so it does not have those advantages but I like the layout of the instruements, the inclusion of a tachometer, and the clean look. The set comes with all of the required sensors and should be capable of being plugged into the VSS output from my N3500 transmission (still will need calibration).
