from what i have heard and seen, it is not as easy as you think it is to do.
the guy who pulled dents at SZ has been doing it for over 12 years.
and if you saw the amount of different spoons he had!
also, as far as i know and have researched, there isnt a 'special' light required, they will use a light up real close to help illuminate the panel.
i have thought about getting into this as both hobby and profession, the kits are very very expensive.