So I finally made the decision and got the stripes put on. Couldn't be happier with the outcome. I ended up going to Thumbprint in Simi Valley. I was able to make a midnight run to the dealership and get all the measurements with the taper from the roof down to the bumpers so the owner (Kenny) was able to make a template for the vinyl and cut it with a plotter. He saved the template in case any other people with challengers are looking to get it done. Again, super professional, very clean shop (about 5000sq ft did the install inside) and he personally did the install. I would say it might even be a better job than coming from Dodge, which I heard some of the dealers are having a third party install the stripes.