DH added some screws to the drooping seal at the uper door/bottom. Our outside lt with a handle bar decided to not work. The socket is shot. This is a 1990 25ft. HiLo Classic. DH remembers replacing this socket once before. Does anyone know of a source for this replacement part? Don't want to replace the entire unit as this would be expensive. DH may have to install a more modern light above the original light. I defenitely need the handle bar assist to get in and out of the HiLo. Thanks for any advice.