And then there's Mike Clancy's Hastings at 78N 40W. Just flew into the ice at about 8000ft doing a free drop to a Joint Services Arctic Expedition in the early 50s in a white-out. When I was last there in 66, you could just see the top 3ft of the fin and rudder sticking out of the ice. The scientists working near there got the starboard ASI out for me to present to the co-pilot who I knew.
Lord knows what condition she's in, but any Brit restoration attempt would be a non-starter.
There's a book on how they got the crew and RCT airdrop team out, called Rescue below Zero but I'm sure it's long out of print.