Large Rear Window Template

Happy Friday!
I met Tom Hird in Washington and got to see his immaculate Ercoupe. He spied some photos of mine and said, "You have the large windows." Until then I did not know there was a difference. 
After an inventory of all the pieces and parts that came with mine, I am sad to say there are no rear windows included (or side ones, but a new bubble windshield!).
I saw online a template for smaller windows.
Does anyone know of a template for the larger ones?
Thank you,
Shawn