Don't know if is the same in the USA, but in the UK, folk who make replacement windows for coaches are often cutting sheets of laminated glass. Find a glass replacement firm for such vehicles and they may cut your screens for you.
You may have to provide a pattern, but cardboard boxes were made for this purpose!
Would be much more scratch resistant than lexan.
Completely agree. I work next door to a glass shop as it happens. I'll ask.
Thanks!
Now if only I had a 3WL to make patterns on...
- samwisekoi