Back in the game
If it were a /6 column auto in the same condition it might be a $400 car?
For $500 difference you got 4spd pedals, hump, 8 1/4 rear, disk brakes, sway bar setup, and a red 340 car that will always have better resale value than a /6 clone even without the fender tag and buildsheet.
For what it is, not a bad deal.
Question is do you want to and can budget a big project like this. A lot of parts are missing and can nickel and dime you to death. You are going to have to be a patient and savvy parts hound.