Hi Cecil,I put a Classic Air system in my car so I have the interior heater box (with fairly new core), the outer cover with fan and the cable controls. Free to anyone who wants them but you'll have to pay shipping. I'm in San Diego if anyone is close.
I also replaced the non-working clock in the dash with a tach so it's also available. Same deal, free but you pay shipping.
I live in Escondido and will be glad to have your free '70 parts. My email address is [email protected] and our home phone number is: (760)741-6809.