I was a Boy Scout / Cub Scout leader for 13 years, both sons achieved Eagle Scout. Both had entered cars over the years and did quite well. I did help them when using power equipment, but aside from that, they did the work themselves. My happiest moment was when one of my cub scouts, took a saw, cut a wedge off of the front end of the block and glued it onto the back. He painted the car with colored markers............He won. Beat out all the other cars, especially the "Dad" modified cars that looked like months were taken to build and paint.