I have a 4300 LCUT (2000 model) that the Fuel and temperature Gauges have stopped working. Does anyone have any information about who can repair these Instrument Clusters?

I have a school project where I need to manipulate the gas and temperature gauge for teaching purposes. If someone could please send me pictures of the wiring diagram for AL153736 instrument cluster in a John Deere 6300. The part number for the book I have found is TM4523 or TM4524. However...