The twins, that i dont think you met, jimmy and kris did. Built a 67 step side back in high school. Took a year and they worked on it almost every night.
Yes very time consuming. We spent four years(nights and weekends) on the 71 Chevelle and the 69 Camaro was brought home in August of 2007 if that tells you anything.
There was over a year that went by that we didn't even touch it at all though.