This is the way a Newtonian on a German equitorial mount looks: The guide scope (left), focuser/DSLR (middle), and finder scope (right) are all mounted side by side.
That's the problem. Since they are not in the same plane, the center of balance is spread out, making balance in the declination axis difficult
or impossible to achieve. If the OTA was rotated such that the guide scope and the focuser/DSLR were in the same plane, the guide scope would
be blocked by the focuser/DSLR. One COULD rotate the OTA such that the focuser/DSLR was opposite the guide scope. Of course, this would place
the focuser/DSLR on the underside of the OTA!