See if you can find some photos of the way the Valkyrie Interstate (GL1500CF) hinge is designed. You may be able to fabricate a similar design by removing the pin, then permanently securing the pin in just the bottom half of the hinge. Then you could dremel the upper pin rings into ‘hooks’ so the lid will stay on when latched, but disengage from the hinge when slid forward.
That's a good idea thanks. The hinges on mine are hard nylon or plastic so that should be doable I believe.
I been looking for images of the IS hinges up close just not found any online. Maybe someone with some can post.