I'm still trying to get my head round where these ferries are supposed to come alongside, and where the landing facilities are for them exactly?
Also, what cargo is going along with them too, as otherwise you've got 10 ferries worth of lightly armed infantry and nothing else.
I don't want to sound patronising, but if you go and look at the worlds amphibious fleets, you'll see a lot of very specific ship types, and a lot of investment in C2, and a lot of investment in logistics to get kit ashore. You do not see a lot of investment for 10 high speed ferries that have no means of actually putting their troops ashore when they reach their destination...