Doyusha 1/250 is more of a remote control model due to the simplicity of the molding compared to the Arii 1/250, Nichimo 1/200, or Tamiya 1/350.
Note the Nichimo and Tamiya model only deal with the final sortie configuration with all the heavy AA.
Life-Like produced a 1/350 kit which could be built to represent the Yamato as built, 1944 mod, or final sortie.
Larger the model, the more the PE will be. So 1/350 upgrades are much more reasonable than 1/200. Unless this will be a very long term project to amortize the cost of the adders.