Sci Fi modellers tend to be more into adding lighting that anyone else. Maybe pose the question on their forum, or have a google for something along the lines of lighting starship models.
This is one of the links that a search came up with:
http://www.starshipmodeler.com/tech/cj_xmas.htm
Another potential lighting source might come from PC case modding stuff. Cold cathode tubes are probably going to be too big, but had a string type long light about 1 to 2 foot in length (I had a pair in blue, but never fitted them in the end. Imagine that they must be available in white?) If so, you could probably fix one to the ceiling of the hanger deck & I would have thought that it should be pretty much invisible. I did light one up & it ran quite cool so I wouldn't have thought that it would cause any heat related problems. I think they run off 12v DC.