I could use some help with my rear view mirror on the Shelby. I know it's at least 20 year old, and It may or may not be the original mirror. It's a 'Talbot' style, and the base is 5 1/8" long. Anyone know where I can find another? I've see them advertized, but most have a base of 4 3/4. I'd like to find one with the longer base.