Some production cars (Buick?) had a reverse hood with a front latch. You would need some kind of roller to catch the back side of the hood and keep it where it needs to be. Then when the hood comes down, it would still use the latch.
The hinge is going to need to (kind of) do what the flip trunk does. It needs to have two pivot points. One to raise it high enough to clear the bumper, and the other to actually make it pivot and hang over the frontend.
