I think it is still appropriate. If economic conditions permit, this figure is good. In fact, 666 is also ok, and it is lucky that you can take it.

This is too much. If your classmate gets married in the future, it is not appropriate to take less. If you have a very, very good relationship with your classmates, your classmates can get 1000 when they get married. There is no need to bear too much burden when classmates and sisters get married.