I do have a question about ships, in specific Harlock's ship the Arcadia is implied to be possessed by it's creator/had taken on it's creator's personality and memories but in any case it means the Arcadia is functionally able to act on it's own on occasion - would that have any special considerations, especially in light that said creator could be appable?

Also, when we're talking size categories, how large is 'large' and 'large at the expense of everything else', so to better align canon ships with the build-a-ship system?