Go to that MarineTraffic website and apply for a free AIS receiver with a 5/8 GP antenna with coax.
If the application goes through you could use a small windows laptop and connect a big LCD screen to it. You will see your own received AIS ships on a map when logged in to your receiver and you will also get free access to MarineTraffics own map where the combined data from all users are plotted.
/Ubbe