New entrants to CBR 1000F

Hello everybody, I’m doing the driving license for the motorcycle. May the first two years only drive with 34 HP. After several conversations with my brother-in-law (long-term motorcyclist) he advises me to a 1000 F. I would also have a used machine at the hand cheaply (Bj. 99, 13tkm). 1. What should you pay attention to with the machine, are there any known defects? 2. Is the machine suitable for me at all? Ok, it won’t be strong, I understand, But my brother-in-law advises me because of my “measures” (1.94 cm, 135Kg). What do you say… did you have alternative? I’ve already sat on the CB500 of my sister -> “aff aufm schleifstein” On the 750s of my brother-in-law (older, but unfortunately not know which) things were a little better…that’s why he advises me to go to the 1000s.