Bob, many people don't realize this but there is a lot of hand-work involved by the Brookville employees when they assemble a body. They have fixtures & jigs that they are able to clamp pieces together during the assembly process. Folks also need to understand that working sheetmetal is an art, ...and to do it well requires experience and craftsmanship. This is not to say a rookie or novice cannot do it however it is to say that it does not come as an easy task for most people. Therefore, expecting it to just bolt on is probably a tall expectation.