Recommendations on Instrument Setup

[Van_Isle]

I'm pondering. I have a Raymarine SPX-5 wheelpilot and both the ST6002 and p70 instruments as well as the necessary cabling kit to interface the p70 to the SPX-5 course computer (thank you Westmarine close-out sale!).

I also acquired from a local private seller a brand-new-in-the-box ST-60+ wind instrument - the full kit with masthead transducer and cable.

My existing 'instrumentation' is an ancient Simrad IS12 Combi with separate depth and speed transducers. Depth transducer is a 200kHz Airmar and the speed is standard Airmar which had the paddlewheel replaced 2 years ago. All working fine and I believe the transducers could be connected to either ST60+ or i50 instruments. Same goes for the ST60+ wind transducer - I believe it will work on an i60 wind instrument.

So .... should I buy a ST60 or St60+ tridata (probably new or used eBay purchase) or buy a i50 tridata and a i60 wind control head? I think overall the costs should be about the same, regardless of how I configure it, given I'll have instruments to sell to offset.

So it comes down in my book to Seatalk vs Seatalkng.

My chartplotter is a Standard Horizon CP190i (NMEA 0183).

I'm only thinking of the Tridata units here as I have a 3-instrument Navpod for the helm. So regardless I'd end up with wind, speed/depth and autopilot heads.