Na, I like the impulse engine design.  I went through several different looks and implementations, and I really like this design.  That's why I kept it.  However, with that said, once this ship is completed, and hopefully that'll be soon (I NEED A FREAKING MAPPER), I'll release the ship for rendering purposes in her current high poly form, and should someone want to do a poly chop to make her a bit more game friendly, they can also modify the impulse engine design as well, since I'm not opposed to seeing different concepts.  Just for me right now, I like the impulse engine design.