Why Nagato would have made a valuable Japanese museum ship

Which Japanese ship that survived the surrender would you have preserved as a museum?

Nagato, although she was instead sunk after the Operation Crossroads atomic tests.

The choice favors a capital ship capable of representing the Imperial Japanese Navy at museum scale. Nagato survived the war but was expended in Operation Crossroads rather than preserved. The brief answer invites a larger question about how postwar testing decisions erased ships that could have anchored public naval memory.