Schyrós, Venerable Khelon with War Tower

If you've already got the crew and megakontabolos, you can get a hold of the Schyrós, Venerable Khelon with War Tower variant which doesn't include any crew! Unfortunately you can't just purchase the war tower and pop it onto the existing Schyrós; the war tower alters the body of the big turtle. But hey, you needed two turtle monsters, right?