[CA11] integrate e165 & RD424HD w. older Raytheon electronics

[Kevin McIntosh]

Raymarine Moderators ... would someone mind commenting on how I might integrate (by naming the required SeaTalk networking components, ect.) the following:

e165 MFD (E70025) (not yet installed, will be mounted overhead at the lower helm. I do have concerns about the weight of the unit being excessive mounted in this way - essentially hanging from the trunnion mount and an overhead 5/8~" thick teak-veneered plywood panel - are there any case studies of this mounting method being a problem for the e165?)
RD424HD (E92143) (not yet installed, will take the place of the existing SL70 radome [see more below] on flybridge radar arch)

and, pre-existing Raytheon navigation electronics, consisting of:

(flybridge) radar arch installed:
RAYSTAR 120
PATHFINDER SL70 RADAR radome (18", 2kW, FCC ID: ASLMTX2, CANADA: 149 B404, CE 0191 - radome unit may be moved back to sun visor over house windshield[s][, ahead of flybridge surround], where it was mounted some time ago [badly-filled holes still exist])

at flybridge helm position:
ST60 TRIDATA Autohelm Series (more details to follow?, photos of unit's rear pending)
CHARTPLOTTER RC520 (monochrome, = 'hsb1'?) 7" LCD DISPLAY (R32005, 0800030)(s/w version) V6.05
PATHFINDER SL70 RADAR (monochrome, = 'hsb1'?) 7" LCD DISPLAY (M92678, 0510345)(s/w version) V2.18

there are also pre-existing:

GARMIN GPS 17 ([flybridge] radar arch installed) --> purpose? likely was only to feed GPS NMEA data to a Smart Radio SR161 AIS Receiver for signal integration and output to a PC running Rose Point Coastal Explorer 1.1.61 software
GARMIN Fishfinder 240 Blue (011-00645-00, 53329468)(Lower Helm overhead installed, no NMEA input [GPS] capability)

So, in conclusion, to the extent that it is possible to integrate the older RAYSTAR 120, ST60, RC520 & SL70 system with the newer e165 & RD424HD, it otherwise does not make sense to me to do away with the older electronics (the radome redundancy that that would entail kind of bothers me, cosmetically-speaking, however, I could probably live with it), as the ST60/RC520/SL70 displays can simply remain at the upper flybridge helm (and provide a navigational backup) while the e165 will be mounted overhead at the lower helm (and offer display expandability to the f/b via monitor [hard-wired] and display/control via tablet/smartphone [Wi-Fi, Bluetooth]) ... what do you all think?

Thank you, Kevin Mc