Sounds like normal were and tear. Wether you purchase such a car is strictly up to you. Be advised you can't take it to a dealership for any maintenance. Some independent European import garages will have the knowledge to work on them, but it is much better to learn the car and do it yourself. These are great machines. Made by Mercedes in Germany.
I have had my 2005 for ten years now and take very good care of it, but I drive it and consequently it to has the paint chips on the front. Headlights can be easily polished clean to look brand new if that is necessary.