It be better if we found, raised, and refitted Musashi to look like her sistership in the future and then deliver that to Japan as an offering. (or make it actually work and use it for space exploration, but that's even more off the wall) Yamato herself is in too many pieces, but we don't know what Musashi's condition is (probably worse as she was hit from all sides, some sailors claimed they heard explosions under the water...and it is a long ways to the bottom in that part of the Seas).
Besides, the Gamilons are suppose to be sending their first probes here in thirty years. Might as well be ready for them.
