Need advice on purchase

Hey Donny, my opinion. You say you know nothing about cars, you better have a GREAT support system in place that KNOWS 50 year old cars. Family, friends that are familiar with mopars.
The "girlfriend " is selling these? Make sure ownership etc is legitimately in her name. I highly doubt she "knows nothing" about them.
Where you located? I'm north of Peterborough Ontario.
Get a good known car person to check it out with you.
Cheers
Steve