My boat will be done in a couple months and I’m going to be rigging it out with 2 126sv graphs, lvs34 and a Garmin force. When setting everything up should I buy the 5 port box and network everything through it or should I just use a network cable? Also should I get the steady cast heading sensor and if so can it only be hooked up through NMEA? Is there anything else I need? Thanks for all the information.