If you let a steam engine stand there are lots of things that just immediately begin to decay and it has been fifty-five years since she ran. Alongside that is the issue of certification of her boiler, which would have to be done. She was brought up to modern Westinghouse brake standards in the 1960s refit but I'm afraid she's stuffed and mounted at this point. They'd have to demolish part of the building in order to pull her out.
Bob