When trying to combine various electronic systems it is best to understand each system and it’s capabilities. Evaluate how you plan to cruise. Then consider the data being provided and determine the relevance of this data to your planned cruising experiences.
Only then can you with some sense of priority evaluate the reward for the efforts you are considering.
I’m guessing you have read enough online about sailing, to conjecture you need to have everything at your fingertips, integrated, all displayed before you in order to survive on the water in your sailboat.
Wrap yourself in an electronic cocoon then you and your family will be safe.
It does not work that way.
Your list of systems, some of which I do not know personally, are not of an age or design to be used together let alone merged into a single, all knowing, display of data bits streaming to your cortex.
Yet each system appears to provide good sensory data that when combined by your boating skill will allow you to perceive beyond the limits of your eyes and ears.
This company builds AIS systems but from your description I cannot tell exactly what you have.
Comar Systems is the leading manufacturer & supplier of Automatic Identification Systems. AIS Transponders, Transmitters, Receivers, Splitters & Antenna for marine traffic and intelligence information providers. Installation to Commercial Liners, Defence Vessels. Leisure Craft including Yachts...
comarsystems.com
Milltech Marine sells boat tech. Here they describe the merging of your Comar Multi with the Vesper Marine AISWatchmate. Leads me to question what system you have creating the AIS data.
Your Furuno Radar is a solid analog radar with a 16mile range in a size that is geared to sailboats. Have you ever used radar?
Becoming familiar with radar and its capabilities might be a place to start. It takes a bit of skill to interpret the screen blips and relate them to real on water objects so that in your mind you can construct a situational awareness of what surrounds you. Having to do this at the same time you are trying to motor or sail can become a mental overload situation very quickly.
Your Garmin chart plotter, while a superseded product in their long line of plotters, appears to be capable of building a route and monitoring your progress along that route. It will use and display your Raymarine wind transducer data if you can connect it and have the data talk the same language as the chart plotter. This appears to be NMEA2000. I suspect your ST60is using Seatalk connections which likely are a version of NMEA0183 data streams.
No one said this would be easy.
If it were me with a new boat, I would spend my time focusing on the boat and building my sailing skills each day so that I could sail the boat blindfolded in the dark with nothing more that someone telling me “Don’t hit that channel marker on your right as you leave the marina.“
