Call Raymarine and I have C-80 they said newer chartplotters won’t work with my radar but should be ok
for other equipment but give them a call and they can tell you for sure.
I had my C-80 replaced with newer C-80 if interested do search for repair.
In short no , your E80 is seatalk 1 , everything new is NG network , however there is a converter you can buy seatalk1 to ng that will allow a new chartplotter to talk to all your equipment and as noted except radar. I kept my c80 for the radar and added a second axiom chartplotter
To replace my C80 with an Axiom 9" display I need a Raymarine analog to digital converter. Raymarine also makes retrofit bezels that are compatible so the new unit can slip right in the old openings. Your radar will need to be replaced with new digital radar however the new radars are wireless and Raymarine makes a converter so the old radar cable can be used to power the new Radar.