This is a real gray area in the restoration/custom world. I know a few shops that have a chassis made by shop A, have shop B do the sheetmetal work, have so and so paint it, and then just assemble everything in their shop and represent it as a car they built with no mention of shop A, B, and so and so. It happens more often than you think. It sucks for the people who put in quality work with ne recognition, but it is also how the guy that orcheastrates the build gets customers cars in his hands to delegate. Think of it as a building superintendant, While he is not actually building the house, he makes it happen and his name is on the finished product.