Sometimes, web surfing can result in completely unexpected goodies. While bouncing through the 'Trending' topics on The Old Reader, I found a link to a very interesting PDF on ancient Egyptian maritime activities: Foundations of International Thinking on Sea Power
I have only just started to dig through the Egyptian pdf, but there is a section on maritime activities as based on archaeological findings that could be very useful.
The link above also lists a history of Japanese naval matters that could be of use.
These documents are part of a larger collection: RAN Publications. There is a large collection of documents there, with topics ranging from WW1 to the present. Most of them are concerning the operations of the Royal Australian Navy, including ASW reports and merchant ship movements in WW2. Go take a look!