No sorry I dont have a photo, I owned the TC back in the 80s but what I do remember is the Cortina window was a bit more square and the Avenger window tapered in at the top, the reason for the gap at the top.
The Cortina window was also more flat on the bottom, the reason I had to trim it to get the curve right. I dont remember modifying the top?
I only used the MK4 Cortina one because a mate had it and he put it up against my window and it was a close fit so he gave it to me. There may be other models that will be a better starting point fit,