A friend made one from a 4X8 sheet of 1/2" plate, He had two C's (maybe G's) cut out and boxed between them. We asked about the rollers and tools. They make their own for whatever project they need something for. He also made a matching planishing hammer with a motor driving a crankshaft on the top. Should be no surprise, I watched him build a bike stand for his dirt bike when he was 10. It took all of 20 minutes.
