It's been mentioned several times that the upper hinge is in the way of a one-piece glass setup, and I wanted to verify this. So after the door was completely apart, I took the following pictures:
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As you can see, the upper door hinge is right in the way of adding one-piece glass. The ONLY way this would work (that I can see) is to completely relocate the upper hinge.....which obviously is going to be a LOT of work.
However, while sitting back trying to come up with an easier way, it occured to me that it MIGHT be do-able by bolting the door hinge to the OUTSIDE of the hinge pocket rather than the inside. You'd have to reshape the hinge arm to keep things aligned.
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If you could mount the upper hinge on the outside of the hinge pocket, and bolt the hinges on from the inside, there might be enough clearance that way. Of course, like I mentioned, you'd also have to rework the hinge arm to stretch over to the new mounting location. You'd have to move it over roughly the width of the hinge arm, and this could be achieved by making a 'Z' in the hinge arm, something like this, which I just whipped up in Photoshop for the visual:
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This might be a lot less work. However, I've never tried this (obviously), so I'm just speculating. Any thoughts?
If anyone else has ever done this, I'd be interested in the specifics about what was done....and if anyone decides to try this, please keep us informed.