Just to share my experience with the application of interior lighting in Milady Landy.
Through www.dx.com I bought a roll of LED strip (Waterproof 72W 3000LM 3500K 300-5050 SMD LED, warm white, 5 meters long, € 12.74 incl. Shipping).
Of these, I glued a strip of approximately 2 m on two sides of the inside gutter.
Wire to it from the center console on the dashboard (which also operates rear fog lights and hazard lights). Wire hidden in the corner of the windscreen pillar behind an edge of black kit. Switch between them and a wire fuse, this is the result:
Then I had a meter of LED strip left which I used in the engine compartment. I pulled a cable alongside the windshield washer hose and fastened the LED-strip to the hood with clips and two electrical connectors in the engine bay. This is how you do it:
And this is the result, nice and bright lighting also in the middle of the night: