2 cv malicious laundry?? need advice

Hello together, I need your advice a few weeks ago. I bought myself a duck Bj 88 for 3100€. It looks very good and so I started happy. Today the shock, I was with an expert and he hit my hands over the head because I was obviously pulled quite crazily over the table. He showed me countless defects in wind ropes: starting with the axle legs, tires, brake, steering and above all the frame. e apparently needy, but without a little improvement. Rather, only the defects were covered. Well, he meant in any case I have to put in about 600 €, without thinking about the frame. The expert also wondered how the duck got at all (was only 11/07). He estimated the value of the car (without defects) at 2000 €. The problem is that I don’t have the technical idea of the car. That’s why I just trusted it because it was so completely The seller sold the part to me as technically impeccable. It is said that it has never been rejected, no rust etc. The opposite is the case. And as it looks like, all the defects mentioned were already present when I bought the car. So he knew about the defects. That’s for sure, anyway, because he is himself a screwdriver and constantly buys and sells duck. Now I want to get rid of the duck again, since I think that this is a fraudulent trick. This is how a witness can say to me that I have asked several times about defects and the condition of the frame and always only came, that the car is tiptop, no rust, the frame is undisputed etc.. Therefore also the price. He did not mention one of the now obvious defects. After I called him, he did not want to take back the duck and just hung up the listener. What should I do now? It can not be that one pulled so over the table we d, just because you are technically not so savvy. In the purchase contract it says that the sale of private goes to private and that without guarantee. However, he is a dealer. To do a few little things are clear on such an old car. But that goes simply too far. How do you value the thing?? For your advice I would be very grateful. Best regards, Rob