Hello, Is there a genius who can figure out what type of hinge I need for my hidden tool closet that I made. Its constructed of 2"x4"s covered in drywall (wheels mounted to the bottom). I guess it would be considered an overlay door. Here are the dilemmas: 1. the hinge MUST be hidden 2. enabling the cabinet to clear the 1/2" drywall when opened. 3. It must be able to mount on the 2x4" (1-1/2"x3-1/2") wood beyond the 1/2" drywall outer skin. 4. When the cabinet is closed, the cabinet 2x4 and the wall 2x4 stud is flush or butts together on the 1-1/2" sides. thanks!