Hi All,We have the Raymarine ST40 Depthfinder, the ST40 Knotmeter, the ST60 Wind Machine and the 4000 Autopilot on our boat. I just ordered (from Sailnet)the following for my husband for Christmas. Did I do this right?(E02020)Raymarine C80 Multifunction Nav Display w/8.4" Sunlight Viewable Color Display (D-284)RAYTHEON 1 METER SEATALK CABLE Navionics Chart for East Great Lakes(E32042)Raymarine Raystar 125 LP. Seatalk & NMEA 12 Channel GPS Sensor Antenna with WAAS & EGNOS