Dual exhaust on a 67 Notch

To make my new tips fit there was some cutting on the rear lower panel.Ex3.JPG
The right side had never been used so I located it and matched it to the left side. I am thinking about
1/2 of the tip up in the panel with about 1/2 below and about 3" of reveal past the lower edge. We'll see.
Ex4.JPG