I forgot to add, when I did mine, be sure to split up the fibre optics and get a few blue LEDS as well as plain white ones.
Plus, rather than the standard fibre optic through a hole idea, I also added some 'bay' like windows too.
Easy to do. Make a very thin strip of perspex etc and carefully cut/file a few slots out of the hull. Glue the fibre optic flat onto the strip to shine light across the face of your clear/tinted strip, not through it.
Glue the optic away from your hull slot and add a few to each side for bigger windows. Sometimes it didn't work well (wrong angle etc) so put epoxy all over the clear strip to trap the light on the strip.
Very very fiddly to add these but adds a well cool bit of 'spacelike' ear to the whole ship
I did experiment with chocolate wrappers to get different light but just scrubbed that and stuck to white and blue.
Good luck with this dude. You've given me the bug again now.
I over did it a bit so know when to stop