I have studied this war quite extensively, and have written some about it, though never published it. In fact my ex-planned thesis was about the activities of the Vladivostok squadron (1st Cruiser Brigade). So, if you want, I may help you. I'm also planning to draw the three principal ships involved on the Russian side: Rossiya, Gromoboi and Rurik. As a sidenote I chose my SB pseudo from Vice Admiral Petr Alekseevich Bezobrazov, commander of this brigade from April-July 1904!
Btw, your book looks promising. Hopefully there might be a free copy to be obtained after publishing!