155 1.7 DTM, BJ 93, 150Tkm, buy or not?

Hi, it’s me again. I’m about to buy a 93′ Alfa 155. I don’t want to be annoying, but what should I keep in mind with the car? Alfa 155 1.7 DTM Have asked the dealer the following questions: If the car has scratches or bumps, it is maintained from the condition, oil changes, service and timing belt intervals have been adhered to (if there is a check book?), make engine or transmission noise, are chassis and axles in order, is rust present, are otherwise defects beka nnt? If I get (positive) answer and can look at the car reasonably I will probably take it. Did the first 155ers have any other bugs (they are fully galvanized or?). Did I read in a test report that the first generations had too soft camshafts, right? MfG comborado