That’s what I was thinking - I had a 90 that flipped over and at first I thought it was just panel damage, then realised the engine had bounced off its mounts and the chassis was bent.
It seems that the problem is that they are almost worth as much in parts as they are running - which I guess is why they are stolen and broken .... so I fear that even if the chassis was straight, you could end up putting a lot of effort and money in to get it right.