1966 Chevy II Accident - Value?

Hi,

We have a 1966 Chevy II that has been in our family since it was bought 
in 1966. It was recently involved in a fender bender and the insurance 
company of the at fault driver is coming to determine the cost to fix 
the car.

Given it's such an old car what are my options?
1. accept the blue book value and allow the insurance company to total 
it for a few hundred bucks?
2. is is old enough and have enough demand to warrant some additional 
value and how would I get an appraisal for such a car?
3. other options?

It's a nice 2 door (with door post so its a coupe/sedan?), 6 cylinder 
~3yrs old, nice paint with a few small rust spots.

We're keeping it regardless but would like to get as much help as 
possible to repair it.

Thanks in advance,
Charlie