Don't worry too much about it right now; just save a little more, because as students, we can't rely on wireless charging. It's best to get everything at once.
I recommend waiting until you have saved at least 5,000-6,000 yuan, then you can purchase the FT891 radio and a small antenna, GP antenna, and a portable power supply. This will allow you to enjoy using it even more.
If you've recently purchased a low-power radio for some reason, you'll definitely find it frustrating (you can receive signals but not transmit them, which will dampen your enthusiasm for using a radio). In the future, you should consider buying a 100W radio instead. It would be more efficient and avoid wasting the valuable 100W license that you already have.