Interesting idea. But instead of just a piece of flat glass that is not tempered, nor safety rated (can be very dangerous deadly if broken. Lots of sharp big shards instead of small chips that fracture)..... how bout taking some quick measurements of your windshield frame area, then go to a wrecking yard and find a common car with a frame just a little smaller than yours and cut it off/out and weld that in? Then you can go to a normal auto glass place for a replacement and maybe even a warranty? Just a thought.