The entire upper hull will be 3D printed.
It might look fairly easy, all flat panels etc, but getting all of the panels to line up was a complete pain. The mantlet likewise. I looked at numerous photo's of the real thing, rendered models, and all sorts of scale models, and I don't think I found one that is a 100% match with the original. I can therefore rest easy that no one can say 'that's not right',

I have done the citadel and barrel etc, but need the lower hull in my grubby paws before I can check I have the dimensions to match it, and before I can start on the rear deck.