I saw a photo of one SAR Seaking [sic] that landed on top of a mountain
and rolled over, all the way down to the bottom of the slope.
Slight exaggeration perhaps but yes it was a hard impact which thanks to the skill of Steve H****** proved survivable both to the occupants and the airframe. A copy of said photo was presented by Steve as a leaving gift a year or two later with the caption underneath "Thanks for a smashing tour!".
Does Lossie still have the Seaking [sic] where they snapped the tail off and stuck it
back on again with bodge tape, Blu Tac and the office stapler? I think I saw it
with patches all the way around the circumference of the tail.
No exaggeration here (!) but yes that airframe is still going strong. In fact every yellow Sea King ever built is still in service today, though it won't be long before the airframes start being withdrawn.