I've lived most of my life, and this is the most ridiculous reason Augustus has ever heard.
Being invaded by a Level Two civilization, and you need to purchase a fleet composed of 100 Level Five peak combat ships? You even got the most powerful Zuda fleet in the universe, I haven't read many books, but don't take me for a fool! This isn't just using a cannon to kill a mosquito, this is using a nuclear bomb!
That Level Two civilization probably never thought in their lifetime they'd have such a spectacle, right?
Moreover, someone as impressive as you, what Level Two civilization would dare or have the ability to invade your civilization?
Aren't you the one who, with a single call, has tens of thousands of life forms beyond Level Six rushing to serve as your fighters? Do you really need such things to deal with a mere Level Two civilization?