If it is any help I would suggest trying to create a little program or journal to create the desired symbol based perhaps on a few inputs and placed according to a screen click. The result may be a standard user defined symbol with some text. And while this may seem a bit less polished that you had hoped for the time taken to apply this method and/or simply delete and re-apply when you wish to change it would be fairly quick.
You may find that by altering the line spacing and lettering sizes etc that you might even be able to get this done with a single note. Sure you'd probably have to set it all back after the note is placed, but done with a macro or journal the result would be a long tedious process compressed into a couple of clicks.
You could finish be creating a set of four 90, 180, 270, 360 degrees, and add them on to a toolbar.
Best Regards
Hudson