Well Kirk, like I said I was bored. And strangely, after doing my comparison pic, I realize that I probably didn't need to do all that much to the engineering hull. This honestly wasn't serious, I just wanted to see if it could be done. And quite frankly, it makes me appreciate JJ's Enterprise more. Putting the pic together like that shows how rough the angles were on the original and on the new one it flows a great deal.
As for a Sovvie with Connie proportions...no way. The Ent-E doesn't even have a neck, so it would be very odd to try and make it have one.