I actually prefer the inward glow type nacelle on d7's and K'Tinga's. maybey you can kibbitz the D10 I've been working on; my nacelles look like utter crap. it's not a sketch, either. since I'm a trained draftsman, it's scaled and drawn properly (complete with dimentions)
again, check the thread I have up in modding. I'm working with an older freebie model, but it's looking really good, so far.