D8R +463 in 1/5,6

[9W Monighan]

That thin of glass is not difficult to cut if you score it correctly with a good glass cutter. After cut to basic size, you can grose with pliers sand or carefully grind to get the rounded corners then sand smooth. You should be able to go to a glass shop and they could get the pieces tempered for you. I learned how to cut glass at an early age in my grandfather's stained glass shop.