How could Germany adjust the Deutschland-class design to build at least eight commerce raiders?
Short answerThe real solution is to allocate shipyard capacity to them and accept that other capital ships will not be built; modest redesign cannot erase that industrial tradeoff.
NotesGerman infrastructure and yard space are the decisive constraints. Producing eight Deutschland-class ships would consume the slipways and industrial effort available for other major warships. The programme would likely displace Scharnhorst and Gneisenau as well as Graf Zeppelin, Bismarck, and Tirpitz. Shrinking the design towards a light cruiser would free less yard capacity than the armament comparison suggests. Eight raiders would require Germany to abandon much of its historical capital-ship programme.