Whoa! Was that thing sitting next to the Titanic at the bottom of the Atlantic? First off, go with the simple restoration equation..."Whatever you think it is, X3." The rust you see...There's 3 times as much. How much will it cost to restore...3 Times as much as you think. How many parts do I need..3 times more than you're guessing. How long will it take..3 times as long. How pissed will the little lady be....3 times, well....maybe 4 when it comes to that car.
Like the other fella's mentioned, be patient. There is much better deals out there, with cars in much better condition. That car will no doubt need an Epic restoration, requiring serious skills, tools, money, time. I could see if was your dads actual '68, but other than that...run forest..runnnnnn.