This is something I haven't tried. The gaps front and rear seem wide enough for direct tilt if the depth (thickness) of the portion of the hood that is rising isn't so much that it scrapes on the way up. I would make that edge with a pinchweld look like the edge of a door or hood sides. The thinner the edge, the more easily it will rise without contacting the stationary part. Take a look at early (1963-'66 Mopar A-body car hinges. Very simple and easy to work with. I'm not familiar with the Coronet hinges but I suspect they are similar to Dart/Valiant hinges. You don't need something as complicated as the Camaro hinge since you are using a gas support. You've probably gone through all of this in your head already, so my comments may be of little help. I'm currently dealing with getting a hood to work properly on an old Studebaker where the hood must move front to rear while rising. The edge clearance issue isn't quite as confining as your project, but yours seems easier based on what I gleaned from your description.