As most will tell you, it's always gonna be cheaper to stay in what you've got.
Especially since you know the history of it and that it's good to go. When buying somebody else' car, there is always some risk involved.
To want a new car for a non-functional hood scoop... well, that's kind of silly if you ask me. No offense Terry, I know women are wired different then us men, I've got a wife.
But if it's a must have, Javelin ordered one off of eBay already color matched and he seems happy with it.
Me? I LOVE my truck. I don't see me trading her or selling her for anything. Sure I'll eyeball those 07-09' Shadow Micah V8 Sports and drool a little, but when I think about car payments (mines been payed off for like 3 or 4 years), no thanks! This truck has been too good to me, and it is in my faithful nature to return that. So if it's something I lust for like, Navigation, leather, etc. I spend the money (easy when you don't have a car payment) and I treat my baby.
If you're on the fence. Just keep her. There's nothing saying you gotta sell now and buy something immediately. Hell the more you wait, the more used cars will become available and the more the price will go down. Maybe even to the point where yours is paid off and you buy a second one out right

Hope that helps. Good luck!