I am convinced that the best way to attach the gauntlets is by using the piano hinges method, but not to pivot from one side since it will leave a gap between the gauntlet halves. Remove the original center core and use bicycle spokes as the core replacement for the hinges, then glue them on both sides per arm, bending as an "L" shape the threaded or tapped end of the spokes so it is easy to install and remove that way.