Welcome to Restoration-Mini!!
Trouble lights:I still have ye olde burn your hand and melt the upholstery trouble light on a retractable reel.....it's probably 50 years old and like Washington's axe most of the parts have been replaced at some point including the cord! It is a miserable thing to use, always in the way, always burning you but it simply can't be beat with a 100 watt incandescent bulb (yes it's not supposed to be over 60 watts but you can't see shit with 60 watts) for getting light into the nooks and crannies that an LED just doesn't seem to penetrate.
Is that the state of your car now?
If you have any dimensional/build info, drawings, pictures, etc... that would be awesome.