Purchase advice first motorcycle: enduro/Naked?

Hello! I’ve dealt in detail with different bikes the last few days. Nevertheless, I have a few short questions now. Basically: I can drive up to 48hp, I am 1.90m tall, 90kg heavy. Motorcycle for daily short distances in the city and every 2-3 days 60km country road to visit my friend. If possible but also sometimes 300km routes including highway. Super sportsmen like e.g. the suzuki GSX600 are for the beginning I don’t believe anything – much read about that they In the end it will probably go out on a naked bike or an enduro. First question: I have read in some places that enduros are not suitable for highways and highways? (Grade in comparison to Naked Bikes) Otherwise I have looked at the following: Naked Bikes: – Suzuki Gs500E – Kawasaki WEg – Honda CB500 – (bandit 400/600) Enduro: – Suzuki DR650 – Suzuki 650 Freewind I all like the most. The 500 Naked Bikes are also great. Second question: something important forgotten? Third question: there are several offers for the gs500 with year of construction ~ 1993 and ~35000km. The CB500 is available for 200€ more BJ 2002, but with 60,000km. Does age km-stand here or vice versa? Fourth question: about basic notes I am also very grateful! Vg