I must say that i have used this design and did so, so, many new versions because im just in love with it

I think this is already great, a few minor modifications could be made to improve upon it and make it relatively the same. I see the rear as a major point for attack by my dreadnoughts (I have yet to post any), so maybe move the vitals away from points of rail-gun impact? I recommend adding shields that cover the sides, as in my testing the sides are a failed attempt at protection. If you make those improvements and re-post this, I'd see a lot more value off of this monstrosity.

its really sad that the nice and sleek looking ships never get close to an efficient layout in this game... it really needs more options for facilities and a tech tree to counter the imbalance here. =)