I have 40K [2004-2005 dollars] into this body and paint. That doesn't include the 2 donor cars, for metal. Also, done 18 years ago. It still looks like it did at 2006 Autorama.
The car has held up well, and hasn't been wheeled or sanded since the original paint was finished. Great people, doing great work.
The entire car was chemical-stripped bath, e-coat bath/baked, and front sheet-metal is acid dipped for weight reduction. That was 5-7K of the 40.