The C series supports AIS. I believe that over time Ray upgrades its software
and this may include improved AIS. I have a NASA with a RayC80 and it's not bad, but I expect some more improvements over time. Potential is there, but practically it's got a ways to go.
Instruments at the helm is a whole separate topic since most cruisers are not behind the helm when underway (autopilot on). But a cockpit
display /chart plotter is handy and with AIS and radar
you need not go below to get the electronic picture.
For CPA matters you probably don't need AIS except if you want to chat up a bridge and they won't be changing their course, so it's better just to go astern and steer clear or slow down etc. For out of visual range targets a cockpit display is less useful except in poor visibility and then you can see with your eyes what you can with your electronics
. In those cases you want radar
because not all ships which might be a hazard have AIS and they could have it off or misprogrammed. Radar won't lie since it's completely passive.
I suspect in four years or so a lot of AIS may be sorted out and increase in utility by orders of magnitude.