C 3's are a sure fire way to lose a lot of money especially from 75 up. We car them Jekyll & Hyde cars. A lot are bought around $6,000 needing a few things fixed and after spending $6 k to fix everything they're resold for $6 k. Market is poor and if you lift the body off it's the same as a 63 with none of the horsepower. Rusted out frames are common. Here is my 65 I restored.