With a POD of 1700 or later, can you make this map possible by 1900? The borders don't have to be exact and more states can exist if you like.
States that have to exist:
Kingdom of Prussia
Austrian Empire/Austria-Hungary
Kingdom of Hanover
Kingdom of Saxony
Kingdom of Bavaria
Some sort of confederacy of Rhine-states
Grand Duchy/Kingdom of Wurttemberg
For the POD, there is no French Revolution and so you're going to have to find another reason for the collapse of the HRE. There should be no major movements to unite Germany as one state, with all the states above being separate.
If you think it's impossible to achieve this without having some form of German confederation then please feel free to say so. Anyway good luck!