Dave,
I don't know is the answer. The museum opened in 2005, so some time before then, and the Museum commemorates the Skills of the Kure workers, so I would expect that it was locally made.
Hey, this is MB Mayhem - there will be someone living 100 Metres from the museum whose second cousin built it!
There is also, in the Museum or near it a Full-size layout of the foredeck - I think from A turret forwards. I have seen pics of it; LARGE
andrew