How much would the factory cloth interior for the 84 GN be worth. It is stamped on the material the month and year. There is about 8 yards. Also, has anyone ever had a problem when the car is started cold and it trys to die? Once it warms up it still has a little bit trouble idling smoothly. Also, I need some in-sight about the temp and oil gauge hook up. The gauges are the Auto Meter Phantom series (mechanical).