Just some silliness above to lighten things up.
Randy’s advice is right on – we need more information. In the past year I have seen ’71 911Ts that if I were paid to take them, I would decline. I also inspected a ’71 silver coupe that I sold new and it just now has a 2nd owner at 71,000 miles. It is still as I remember it 20 years ago. The difference in value is astounding. Remember, this is a well cared for, garaged, Colorado car, not exposed to the rigors of new England winters.
The ‘red flag’ in your post is the “1963 912”. It is either a 1963 356B T6 or a 1965-1969 912. It can’t be both. In either case the above admonition applies – some rusty, prior crashed, poorly repaired and not maintained cars can’t be economically restored.
Your eye and a digital camera can go a long way to separating the good from the bad. That pair of cars could be worth low six-figures or not be worth your time, energy or any investment. Generally speaking these are a ‘labor of love’ and not necessarily a profitable enterprise.
I recommend you go back and take pictures, probe for rust and prior crash repair. Give the seller some refundable deposit money if it seems worth progressing farther.
Try this link:
http://forums.pelicanparts.com/showthread.php?t=148416
Before you complete the purchase, have an expert do a through Pre-Purchase Inspection (PPI). That means someone who REALLY knows these cars.
Best,
Grady