E120 Classic MFD with DSM300

[seeray96]

More on the E120. I'm seriously considering upgrading to either the E125 or the eS127. I started the updated SeaTalkng network when I changed to a RS130 GPS last year. However I'm still using a lot of the older equipment at the helm - Raytheon R40XX Raster Screen radar, DSM300, Raymarine S3 Course Computer, Raytheon Raypilot 650, Raymarine Tridata series, etc. Also, I have two transducers installed - a "smart triducer" which feeds the ST60 via SeaTalk, and a B60-200 which feeds the DSM300 to the E120.
I don't fish, so I'm hoping I don't have to change everything at once, e.g. leave the autopilot, course computer and Tridata on the existing network. Presumably, I would be able to start with the purchase of either eS127 or E125.
I'd appreciate any comments and recommendations about getting this plan started.