I'm going this route as well, I like the way it looks. Aftermarket hoods are a craps shoot in my past experience, you never know what the quality and fitment will be, plus I don't want to use hood pins. Personally, I'd rather have a stock fitment, latch, and quality any day. The hood scoop lets you keep all the good things about having a stock hood, and lets you have that custom look that the hood needs in my opinion.
I like the roush hood scoops. Got a good look at them since the Ford dealer here has two Stage 3 Roush Mustangs sitting on either side of a Schoolbus Yellow Boss lol. If it's anything like the 2010-2012 scoops, you just drill a few holes using the templates and install the scoop with the 3M adhesive and nuts.