Let me check what I have usually when I do glass work at body shops most of the time they buy new glass for insurance jobs so the body shop makes even more money and I keep the used glass and sell them off to other glass shops.
I know I have some used glass from a exploder just not sure if it's that side or not.
If not I am going to the junkyard Saturday to pull some parts for my brothers camaro I can swipe a glass for you. Just pay actual cost and shipping. Will be under $50 shipped to you. Installing those is a going to be fun for you as you have to take the channel run out and stuff.
its not always about cone area people, dont forget to determine the displacement of comparing multiple sub setups.
sd x xmax=total displacement