Wow, you did strip her down! Looks like some thick black paint is going to be needed for those engines unless they're overloading them for a little extra speed while running from the Star Destroyer!
BTW: One of the guys in our model club is doing something simular with a resin 'Serenity' from a Yatze (how do you spell that!?!) game. He's hollowing out the inside to put lights in there, he described it as hollowing out a pumpkin to make a jack-o-lantern...