I have thought about that a little bit. I found some small interior LED's on Amazon that are listed for accent lights for boats and airplanes that are super cheap. I was thinking of putting 2 or 3 in there so you can have some light to see what your doing inside since your head will block the dome light. Here is the link to the lights I was thinking of using...
http://www.amazon.com/Convenience-Airpl ... sbs_auto35