I have kicked around the idea of making a pivoting drawer tool box for a few years. Went so far as to cut out the drawer outline in cardboard to get an idea of the angles. Was going to make a steel framework faced with wood. Idea was to abandon the space in the center and have a removeable drawer or drawers taking up space in the center. They could be used for storage of light tools and accessories. To use the pivoting drawers, remove the box and set it to one side. This way , the pivoting drawers could be retangular in shape.
KEH