Purchase of 3.2 Frontera Limited may be imminent, Tips…?…

Moin, I’m considering getting myself a 2001 Frontera Limited 3.2 (4/5-door) next week, the car has original 80,000km and full equipment. Can anyone give me tips, which I should pay special attention to besides the usual suspects for all used ones? I don’t know about Opel at all now. The car has no terrain use behind it, also (yet) no trailer operation (since no AHK). I had assumed that it was a 6-cylinder. … how solid is this engine? Timing belts or chain? The automatic transmission? Is there a vulnerability that I should pay particular attention to? More tips? Greetings and thanks Totti