The C90w looks pretty good, but I notice it is already obsolete. Maybe get one while they last. Looking at them online I think the C90w might be a better unit than the newer C95. I could get a C90w now and replace the nav station unit with a newer panel mount with radar
and AIS later. Newer models should be compatible with the C90w for several years I would hope.
I noticed the RC530's on ebay but $500+ w/o warranty or support is absurd, I would put that cash towards newer tech. History shows they sell for below $200, I can wait for more sensible sellers.
I need to get into a retail outlet and check out usability and charts
. Ask questions about compatibility with my older ST60 instruments and the st7000+ autopilot
I appreciate all your input.