I carefully examined the shock area and came to the conclusion the tape size is approximately 4" in length to cover bolt hole to bolt hole. Based on Danny's measurements of a prime sample and the fact that I do believe the tape width used for the #3 hole and shock tower was the same and off the same dispenser, when I eventually restore the 67 LOS car I will make the tape width (this will be the fixed tape roll width) at 2 1/4" and the length 4" for the shock holes and 3 1/4" for the #3 hole. I agree though it would be nice to have more samples to compare to but considering how few tape remnants exist, we can only go with a best guess conclusion.
This has been a really interesting discussion!
Mike