certification of deposit
You don't need a French guarantor to study in France, but you need your deposit certificate.
examination performance
I haven't heard that I can come to France without exams. If you submit materials in an embassy or consulate, your TEF or TCF score is one of the conditions for the interview, which is impossible to avoid unless you come to France through some special channels.
Capital demand
Actually, it doesn't need 80 thousand, but 50 thousand a year is almost the same. If you want to work for 50 thousand yuan, you don't need it, as long as you don't waste money
letter of admission
High school graduates must provide an admission notice from any university in China. Where is your destination French school? What's your name? In fact, if you get a Paris visa, you can apply directly to the school, as long as you don't pay the tuition in advance.