Neither airplane is a Cessna or any kind of scale airplane They are both likely from the early eightys or late seventies two of hundreds of possible design sport airplanes.

Electronics are almost certainly a wash and not usable likely not even on current frequencys or legal to operate.

the engines is also in such a corroded states reviving it for any real functional use is going to be a major challange.

The airplanes can of course be repaired and flown however that takes some modeling skills and the airplanes are not really appropriate types for learning to fly. In short if you want to get involved you best start with current appropriate equipment and you will spend far less money as well as improve your chances for success.

The AMA is not 'stuck up' they do not register model airplanes and would have now way to identifty your airplanes. If there is markings that says AMA and up to a six digit number then that is likely the ama number of the member who originally built the airplanes. Likely of no use that far back.


John