I have forgotton to mention that I have added on some roof lights. The car has had roof lights since the earliest pictures I have seen from the previous owners. There has only been one small downside, they were never wired in. In fact, they have no insides. More to the point, what insides they do have has rusted to nothing.
I got some nice stainless steel Wipac lamps from Devon 4x4. I chose stainless so they will not rust. I had already put the wiring and relays in when I re-wired the car but I gave up when I pulled the cover off the original lights to find they are empty.