What a fabulous reply! Thank you, very much.
I will certainly contact Chase Larabee. Wonderful resource. Thank you.
I am not a Garmin devotee, but understand market domination.
We have two KX-155s, with G/S, plus DME and ADF in the M20C now. Currently using a Garmin 660 for situational guidance. Have Garmin 345 transponder with ADSB in/out.
Six pack with will work for us. Forever airplane (we are old guys!)
That said, will need RNAV approaches for destinations not served by ILS, VOR (and dare I say it, ADF approaches).
We are thinking a Garmin GPS with approaches (Com not necessary) and S-tec 30 with altitude hold and GPSS.
Many thanks for the referrals.