So, let me ask you. If a used harness, that is made from known quality wire and insulation shows no cuts, burns, splices or other damage, in what way is it bad??? Or, as bad as a damaged one that is being replaced?
Are your harnesses constructed of only known quality materials sourced completely inside the USA as the originals were?
We all know the quality of bulk materials purchased from China. Can you tell us where your wire, insulation, wrapping, plugs, connectors, fuse blocks and bulkheads originated from?