ST 50 Plus Transducer

[B310Racer]

OK.
Here is what I currently have:

ST50 Plus Tridata Head unit, Speed (Temp?) transducer (Model TBD) that I discussed earlier, separate depth transducer (Model Unk). I also have a wireless wind direction/speed unit at the top of the mast that is feeding a Tacktic MN 100 - 2 head unit. I'm assuming that all of these are analog.

Can you recommend replacement/upgrades - preferably with a minimum of disruptions (through hull replacements). Or, at least a reasonable plan to move out of the older items and into the more current technologies. I think in the long run I want to be able to run a backbone (2000) to connect everything including my Fusion AV700 stereo and a more current VHS.