replacement

Hello, Im looking for a place to find some replacement 90 degree electrical shrouds. They are located in the front turn signals and provide some protection from the elements. The included photo shows the original rubber and some dimensions. Any info is greatly appreciated!

Need an opinion: driver's side mirror - the thread inside the mirror is now officially stripped and I cannot tighten it enough for the mirror to not fold in even when at slow highway speeds. New one? Or get it re-threaded somewhere and use a larger bolt? Is it worth the effort. Thanks!