Keep the notch. Its harder to find an unmolested notch than it is a fox vert. And you can probably get more money for the vert with the low mileage on it.
sell vert, mod the hell out of the notch, it's way more fun to hop them up and rod the hell out of it than pamper a trailer queen, my stang has been wrecked three times and will never be worth anything to anyone.... but me which is perfect keeps me from selling, but it does not keep my for modding it or endagering me life while behind the wheel on the desolate back road