Probably one of the best milsurp in the world, ever!

[Surpmil]

It's a conterovercial win for the Government either way really.
If they sell her, they make money, if they scrap her, they make money.
The public lose an Iconic item of History though.
It would make a splendid museum. BUT, the upkeep of a vessel this size would most likely be cost prohibitive, sadly!

Then "mothball" the bloody thing! Park up in the frozen north somewhere where it won't rust away and forget about it until it's needed.