Urgent help sought C70 T5

You know better than me I have to look at this car this weekend. Now I have volgende problems. What should I look at when I look at this car. what are the repair costs ? What do I have to pay attention to with the Turbo. What do you mean to the advertisement some I should not buy a car because the seller is a car dealer and dealer for foreign exports (autoexports) and foreign citizens.C70 T5 greets all