Upgrading my system

I recently purchased a 2000 Doral 360se and it was outfitted with the following Raymarine/Raytheon products;
RL70 CRT display
M92650 Radar
Raystar 114 Combined GPS and differential Beacon Receiver
St5000 Autopilot

At this point I am unsure of each components working condition as the previous owner had equipped the boat with a separate chartplotter from standard horizon and hadn't used the Raymarine products since he owned it.

My marina offered me a classic C80 (stand alone) MFD with power cable only and I was wondering if my radar was compatible with it or would I have to upgrade? Also would my autopilot and GPS be compatible or would I need to upgrade those as well.

Any light you could share on it would be very helpful.

thanks
Andrew