can somebody educate me a little

I have several a bodies. 1976 Duster, 1976 Dart Sport and have owned several other 73-76 Dusters and Dart Sports lately but now I just bought a 1970 Duster that needs to be redone. I know these are a little different than the 73-76 Dusters and Dart Sports. What other A bodies are the parts compatible with this one. Is this one a stand alone or is it compatable with the 71-72 Dusters. I know I will need a steering column and a dash. Thanks, Bill