right it with a crane and anchor it to bedrock with guywires
It is worth a try. We have a MP in our yard we planted about 40 years ago, only about 35 ft tall, pretty hardy tree.
If ours blew over, I'm sure we would try to salvage it. In USA, insurance company would maybe not even pay to remove it unless it hit a structure let alone attempt to right it. No idea how Norway ins. companies work. That size tree in my own yard, I'd probably lift it with my front loader, get the loader under it with some rubbing boards against the trunk, and push it up (since I have a couple of loaders but do not have a crane - crane would make it easy but maybe costly?) Get your cables anchored before anything else. Do you have another tree nearby to use as a 'crane' ?
The root structure looks to be pretty well intact. If there is bedrock only a few feet down you may be able to drill into it for some pretty good anchors with galv steel cable -- it is worth a try, especially since it is the middle of the dormant season. Since you have such a shallow top soil, I'd consider pruning the tree, even topping it (gasp, choke, gag - something I normally abhor!) before righting it.
I transplanted our MP tree about 15 years ago as it was crowding the house when it was about 15 ft tall and in shade of D Fir. Scooped the root ball out with a front loader and dropped into another hole, it has done better since it was moved out of shade.