My code is (I believe) pretty thoroughly optimized. All strings are within F() statements, all print statements are #def'd out (see ArduinoLibs/Debug.h at master · aphelps/ArduinoLibs · GitHub), etc. If needed I can go through all the included libraries and inspect the code, but I'm hoping that someone can point me to a method of determining library memory usage via tools.
At this point I'm sort of suspecting that these don't currently exist, at least within the generic Arduino IDE ecosystem.