Thanks for the replies.
What I am looking for I suppose is realistic ways that the Germans are able to (read allowed to) begin re-armament in the early inter-war period.
One way to do so, I like this because it might allow the Germans to complete construction of all / some of the ships I listed in my OP, would be in reaction to greater Soviet success in their war with Poland.
Another would be for the Germans to be allowed to expand in the aftermath of a Great British Strike in 1925 leading to a Communist Britain – more hard-line than that posited in Lord Bribane's very excellent timeline
Bayonets won’t cut Coal.
In both cases I would imagine German re-armament would be allowed under conventions amending the military clauses of the ToV. Amendment of the reparations clauses would be important here too, as well as being potentially more controversial from the pov of the Entente nations.
Ideally I would want both of these events to occur, with a Second American Civil War breaking out at some point as well. Obviously the sequence of events would be great importance, otherwise I would be overworking the ASBs and butterfly-nets!
My desired end result would be a multipolar world in a state of extreme upheaval:
• Germany is again in the front-rank of the Great Powers; an uneasy détente has developed between the Reich and the French Third Republic as they face the revolutionary powers.
• Internally, Germany has benefited from an equally uneasy détente between the Social Democrats and Monarchist Conservatives.
• The Nazis remain a fringe group; anti-Semitism still exists in Germany, but is not fostered as it was under the bohemian lance-corporal. Ideally, I would be looking for some event – a version of the Beer Hall Putsch perhaps – that has discredited the Nazis, and revealed early on their danger to Germany.
• There would be no WWII as such, rather a series of large, local conflicts somewhat intertwined, in an ideological cold war.
The above is very much a brain-dump, so I am keen for any feedback.