I recently viewed a time capsule trunk of a 68 300 with @15000 miles. One of the details that jumped out at me -was the original spare tire, that has never been used.
It still had the stencil of the part or model # on it! I decided to have a bit of fun and make my own stencil for my original (but at one time used )spare tire!!
I think that you have far too much time on your hands and should come on down to Connecticut. I have plenty of C Body projects that would be a better use of your time.