NEED HELP- 1929 National $100 LOW SERIAL NUMBER

[Robarons]

Ran into a:

1929 $100 Bill
National Currency
Type 1
Graded by PMG 30, certified

Danville (cannot think of state or any other details)

But heres the kicker- its serial number 2 note. Yup, 2.

00000002

Now the guy wants $600 for it- is it a good bargin. I far as I know fancy number notes can be worth ALOT- especially if there are single digit.

Any thoughts? Good idea? Bad idea?

Also to help me decide does anyone know any 000000002 number notes for sale or prices realized- like a 2009 $100 bill with kind of serial number