Great project there. It's very similar to the '70 that my son's putting together. He's using a 6.1 and Keisler 5-speed with a painted to match AAR hood, AAR rear spoiler and the side exhaust, but he's leaving the AAR stripe off.
What are your plans for the side markers? When I built my wife's '73, she didn't like the side markers sticking out so I recessed them. It really cleaned up the car without taking away the '73 style. We were going to go with a hockey stick stripe but the stripe doesn't line up well with the location of the side markers so we went with the '71 gills on the fenders instead. The car just needed something on the sides to break up all of that green paint.
Keep those pics coming.