I am progressing with a full electronics upgrade of my 1965 TSDMY deep ocean class 75ft G. De Vries Lentsch Motor Yacht. I am ignoring all / any advice to go fully networked, NMEA, Canbus etc... Instead I am investing in commercial / fishing trawler versions of standalone FURUNO gear for each item (GPS, Radar, Depth Sounder, Autopilot etc...) and having dual redundancy for each. The previous FURUNO gear, installed with this approach served the vessel well for 30 years! The only reason I am getting rid of my old 'green screen' and CRT screen radar is that Furuno finally has no more spares. I have selected FURUNO again because of its commercial orientation and the fact that it plays the long game with its models which means I'm not going to be upset in 2 years when the latest software update renders my hardware useless. The key question I am asking myself now is do I replace the existing HF Radio. All the HF stations in Australia have closed down and there is still a burdensome licensing system here to own an HF license. The argument in favour of keeping the gear seems to be that HF is a communication tool that works where all else fails. I am figuring that I can instead invest in a hard-wired Sat Phone and even have an Iridium Go as a back-up. Please Members, let me know your views assuming that I am refitting my vessel for long range deep-ocean passage making.