Only accident mustangs v6 to 25k?

Hello, excuse the first post right here, but I’ve been lurking here for ages. And so slowly I lose my hair. For about 6 months I endured and try to find a decent dealer. Decently in the sense that the vehicle is not an accident car or economic total damage. Is a car accident-free, then it often had water or fire damage. A friend of mine recommends to buy from the private but for the sum I have the feeling to buy the cat in the bag (not that the dealer did not want to pfuschen too) . At the moment I also find no good offers from the private. There would then also be a V8 with LPG in question. With regard to dealers, I have so far only discovered a single one where cars with totally economic damage are stored but have been completely restored with all possible documentations, TÜV, dekra and ADAC examined. And according to my own statement no disaster cases have been as it imagines. He also does not take any cars with water – and fire damage. The big question is however, it is more meaningfully with a car whistle to buy with a background? Or to make sure that every car has to buy it has to make a lot of money?