Custom Canvas Top?

The vinyl top on my '64 Valiant is now five years old, and while it is still in decent shape, it's butt ugly...especially the plastic window.

Since the top is down nearly all the time from March to November, the plastic window has deformed from being folded in the well for so long, and it has the usual discoloring and tiny scratches. My ongoing improvement list includes a canvas top, and I'd like to have a glass window also.

Has anyone considered having a custom top with a glass window installed in their early A?...or maybe seen one? I know the well would have to be redesigned for a glass version to fit, and the window would probably have to be smaller than the plastic one, but it sure would be an improvement.
Author: GaryS