New England Salvage Yards?
There are a couple.. In MA there is one in Bernardston called bernardston auto salvage. There is also one near Milford NH which specializes in A B C autos from the 50s 60s and 70s Winkel auto parts. He has everything you could need. It has been a while since I have been out there he is right on Rt13. As far as i know he still has a great selection of cars... The spelling might not be right. Only thing about Winkel is you will need to clear the whole day. Good guy just likes to talk Mopar.. I am not sure of any others that I can think of off the top of my head..
Happy hunting.