I pulled a few measurements too. Mine's a sedan, keep that in mind. Sorry that I didn't post pics, it's too d@mn cold.
I measured these from the center wiper mount, couldn't find any other really good reference point.
Left & right hood snubbers, 41 7/16"
L&R quarters, first fastening bolt, 43 3/16"
L&R quarter panels, front inside corner, 47 3/16"
Finally, the rear of the rad support was 11 1/4" to the cam cover/upper timing case bolt boss.
The front lip (that the hood hinge bolts to) is 16 3/16" from the same cam cover bolt boss.
I also measured the fan shroud rear to front engine chain case surface, 3 1/2"
From what I've seen early & late hoods interchange. The only differences are the insulators. Not sure about swapping 'verts, sedans & coupes.