I was considering a replacement light such as Gdads51 suggests but decided to "rebuild" my original. I replaced the switch that did not function correctly with a rocker type I found on E-Bay by modifying the bezel and base to a rectangular hole and replaced the wire from the socket button to the switch by soldering a replacement wire with heat shrink tubing to the old wire core near the button. I do still need to modify the opening in the cab slightly to clear the new switch but it preserved most of the original look with improved electrical components.
