65 is what I had guessed. I think there are a few contact marks hidden in the toning that limit the grade. Very nice coin!
Not that one!
The 3:00 position. k3 is just shorthand.
The mark on the rim of the 1963 Franklin? Look on the obverse at K3.
I'd argue that very few people have a collection worth $100k. I know a few on here who do, but the vast majority don't have that sorta coin...
Separate names with a comma.