Write off or not?
For those asking the question on if the a/c will be write off, l would say very unlikely.
The gear is behind the wing tanks and it would not be the tank that the gear has passed through, but more than likely a composite panel.
The rear spar of the main fuel tank/wing structure might be damaged depending on the landing gear beam and where the fittings to the spar sheared away.
Hope that helps with some of the questions.