Build sheet for example is rare if it’s still in its original hideaway from the factory, untouched. Yeah, all cars had them. Finding them is not extremely common. Finding them in very good condition is not as common as you might think. The tie down springs for the jack aren’t very common to be found either. That is a common item to be lost over 50 years as people neglect to reinstall them, lose them, etc. That’s why they sell for close to 50 dollars on Ebay for that spring alone. Yes, common items. But, not as common to find them in cars today.
