my 65 Barracuda questions

How do I remove the hood hinges? I have access to them and have removed the hood, but not sure what to do next.
Preparing to paint my car and thinking about changing exterior color and leaving the inside gold. How do I do the interior doors as far as going from the gold to the exterior color. I know it would be much more simple to keep it all the same color, but thinking about a change. If you have a picture it would be great. I have seen a couple of different ways these were painted.
When I paint the stripes, are they suppose to be gloss, semi-gloss or flat. Again, going to car shows, it seems the few that I have seen are all different.
While stripping the paint, along the roof rail there seems to be a crack on both sides. Is this a caulk that has dried up or exactly what? The cars I have seen all have this, even after being painted. I haven't tried to remove this, but seems I read somewhere that it was a caulking or a filler.
Thanks