Les, to simulate piano hinges (I didn't know that's what they were called) on one of the panels on my EIII I took 1/16 styrene covered wire and rolled a single-edge razor back and forth across at regular intervals. This creates the space between the hinge sections. Then I painted the whole thing aluminum to match the panel and then just glued it along one edge. The effect is good but I suppose probably not as good as using the real thing -- if they fit.