You can relocate the rotation handle to any point in the drawing, by clicking on it while pressing ctrl, including placing it on the point you want to move. The scale of the rotation, the "leverage ratio" of the rotation is raised (ie more handle movement, finer rotation) by moving further away from the selector reference point. Set up a second window at maximum scale to observe the result at the point you want it. You can visually adjust the rotation with the point very finely with the destination point and rotation handle in different windows at different zoom and rotation factors.
[attachment deleted by admin]