Actually, '69-'70 Mustang factory wings were a two-piece design... originals tend to look something like this now. The one-piece repros are the way to go, unless you're an anal-retentive originality freak.
Nice. Looks like the whole point of that POS wing is to suspend a third brake light. Kinda like your 3rd eye concept, maybe? Money must be burning a hole in this guy's pockets.