First, please use a translator from Swedish to English,
https://www.translate.com/swedish-english and then edit the results if required. For example I can't understand what this means, "its a very ugly cut in roof and doors has no gap.
But the floor is nice and tight in the end of body but they needed get the holes wider at rear bolt to frame. If ( rear ) if the body goes back foir gap will be Ok." Your posts are very difficult to understand and many won't bother to read them.
Second, your body can definitely be repaired as Ronnie has mentioned. It can be overwhelming, but doable if you work and repair a section at a time. You need to start with a square frame. Then, modify and fabricate replacement structure for mounting the body to correctly laid out mounting holes. Use bracing and diagonal dimensional verification to get the body straightened out. Welding in the floor is one of the last things you should do. You may have to remove it to get the body, firewall and door gaps set correctly.
Do as much of this work yourself if you are capable. Sending it to a shop may not give you the results you want and will cost a lot of money.
It can be done!