A friend of mine was talking to his neighbor about a Mustang she used to drive when she was in college. It was a 1965 Mustang Hardtop with a sliding canvas sunroof (like the ones in old VW bugs). Her parents bought it from a Ford dealership near San Francisco and the dealership had the sunroof was installed by an upholstery shop. I realize the sunroof is not a factory option, but does anyone know anything about this? Apparently, the sunroofs were available for several years through this dealership. Any info on this is appreciated.