The stern section, while matching the main hull perfectly, should be fitted last, following Trompeter's instructions. The stern section is basically the locking mechanism for the entire hull, sandwiching all internal modules / compartments between the opaque and clear sides of the hull.
On the PE kit (designed to be as accurate as possible with the prototype), one deck piece overlaps the intersection of the main hull and stern section. This means that this PE piece can only be placed after gluing the stern to the main hull.
To finish painting the hull, the stern must be permanently glued to the main hull otherwise it will not look good and the seam will be slightly visible on both sides of the hull.
In the light of the above, and in an attempt to maintain access to the hull, I have thought of the following:
The four glued deck parts are painted on final color
Ditto both hull halves
All modules are placed last with the wiring
I need a standard where the wiring continues with a conversion for switches, etc.
In short, plenty to do.