Topic: 70 fastback/Mach rear glass

[Angela]

Looking for a piece of rear glass for my 70 mach so that I can test fit the louvers prior to primer & paint. I broke my glass removing it.
I plan to eventually buy an entire new set of glass for this car. However, if I could find an original piece of glass for a reasonable price, it would be helpful to me for the purpose stated above.
I'm located in MN.
Thanks.