The reverse shift lockout, speedometer, cooling fans and shift light quit

I would suggest finding a trusted repair shop that is familiar with electrical diagnostics and repair. You will need an electrical system schematic to locate which circuits are down or low voltage. On the other hand, if you have a test light and you look in your owners manual and locate the accessories that are no working, you might see which fuses are dead to lead you to a possible defective ignition switch, fuse link or poor connection. Greg