Funny, just as I was getting ready to cut, I had visitors....so I waited until the next day when I'm by myself. The biggest hold up was wanting to be positive it was the best option. I was hoping to come from the sides of the radiator support, but the 4" fittings / hose were too big for the opening I had with the OEM K. Once that option was off the table, I was good to go. When confirmed the ovals were centered in the valance, the valance was removed making the final trim easy-peasy.
you know the drill, once started.....complete the mission.