1 is grammatical but 2 is supposed to read as "I am not so rich in the present" not "at present" and 3 is fine. "At the present" wouldn't make much sense (To me) Hope that helps :^)
I can’t so many vacancies for you you’re my brother and I’m gonna try to get him to answer this crazyAbout to leave this world to see if he wants to answer and see if I can help you with this