OK ready to light it up...
Finally got around to working out resistor values for LED`s. I wanted to keep the light as close to the scale as possible and so by using the plastic handle that was supplied with the old base i could see that the handle had a natural 45 degree shape, so i drilled a hole from the inner part of the handle just big enough to have the dome of the LED poke through and a larger hole almost all the way down to allow the LED to full seat in the hole. I then drilled a hole parallel to the bolt hole to tread the wires through to the inside of the box. I wire it to a 12V DC socket and you can see from the photo its right on target.