At the time of the Battle of Tsushima, Mikasa was painted in a neutral gray that was a 5:1 white:black mix. A good representation of that is the current JMSDF Grey, which we have accurately matched and available in our Colourcoats enamels, item M 14. Wood decks were natural teak, our item C 01. No minimum order on paints, and we ship worldwide.
Cheers,
John Snyder, White Ensign Models, http://WhiteEnsignModels.com