You are looking at $10,000 worth of body repairs, then add $2,000-$3,000 for the interior, $3,000-$5,000 in rebuilding the drive train, $700-$1,000 for glass and trim, $600-$1,000 for chrome plating and probably $5,000-$10,000 for other items and repairs. I had several thousand into blasting cabinets, a rotessorie, stands, hoist, painting guns, welder and a compressor.
Total cost could easily run between $20,000-$40,000 doing it yourself. Total time for a father-son project could take 2-10 years. IMHO, find a car that needs a few repairs for $10,000-$20,000 and spend your time enjoying the car.
I have pictures in my photo album of a 66 full frame off and a 67 front clip removal and restoration, on the 66 I hired 3 guys to help me get the body work completed and painted. Here is a link where I started with the 67 and then the 66, from this page go in reverse order;