Questions Before Buying a Car

Hello, I have (I think) a good offer for the KOn an A2. I drive about 25,000 KM a year on mixed routes (30 motorway, 40% road, 30% city) A2 1.4 petrol (75hp) Year of construction 2003 Running control 95,000 KM Equipment: Metallic Alufelgen climate ZV elek. window lift checkbook maintained, recently inspection with change of timing belt Price: approx. Eug? What are the inspection costs? Are there any other special costs of which one should know? Equipment Is it right that one can simply remove the rear seats? (is not a bench, but 2 single seats) Can one replace the installed cassette radio with a radio from the store? Are there any other tips on what to pay attention to? Thanks for your advice in advance.