The Provost appears to my unpracticed eyes to be in good condition for restoration and is (I understand) mostly complete. I would hazard that it stood up to storage very well.
However we will not be flying either aircraft but neither will we do doing anything deliverately that would preclude that in the future.
Our museum does not have any flying exhibits, except the DC3, although a few of the exhibits actually flew here and were in airworthy condition when they went on display.