The first thing to do was to have a look at the kit and compare the basic hull and superstructure to the photos to see how it looked. A rummage through the Pontos box possibly indicated that the kit plastic might be a little basic, given how many parts are crammed into the upgrade set. This class of ships has a pretty basic shape, a hull with a superstructure block, bridge, funnel and flight deck more or less. It was pretty obvious straight away that the detail on the superstructure sides bore little resemblance to that on the photos, perhaps the kit showed an earlier configuration of the class, whatever the reason the superstructure wall parts were going to need some work.
I should say at this point that the kit I acquired had already had the hull built, so that needed a bit of tidying up before starting. With micro chisel in hand the work on the superstructure walls began, but a combination of soft-ish plastic, the difficulty of getting a smooth surface and the fact it was starting to become clear that all of the surface detail will need to be removed brought about a change of plan. More of that later.
The photos above show the process of fitting the new deck and stern, with the plastic deck being replaced by resting on some square rod glued to the hull sides to give the correct height. It would then be possible to glue the brass deck onto this to give support.