A fair few here have done lighting mods. Sam Luck, Rayb to name a couple that spring to mind. Ask MGF Mark if you need electrical tips. Rayb has blue interior light that look good, have a word with him or pm him and don't forget the pics.
I did this to my centre console a while back
http://www.the-t-bar.com/en/component/kunena/9-mgf-tf-pitstop/35513-lighting-my-console#35513
MGFMark made me up a circuit board, which I intend to add downlighters on the T bar to at a later stage. He also made me up a dimmer switch which I have yet to add to the circuit.