Hey Rip,
I have an early and late radiator Eric gave me when he was cleaning out his garage prior to moving South.
Yours if you need it. Eric told me the late (bigger) rad will fit the early cars and add more cooling capacity. He suggested I replace the early rad in my 128 autocross car with the larger rad, but my car already has an auxiliary radiator so I don't think I need to worry about the bigger rad.
They both appear to be in good shape... let me know.