You are covering a lot of
water. While there are some formal
government activities for convoying and monitoring vessels in
passage, there would be nothing for that complete
route. Your embassy in each area would know what, or if, is available on each segment.
Boats sometimes form private convoys for added
security, but hiring professional help would probably be incredibly expensive. Generally? Go fast, go silent, keep far off, and set up a
radio security check-in schedule is about all you can do.