Has anyone tried to buy or succeeded in buying a National Hickman door? We want to replace one of ours with one of their half-glazed doors but they won't sell to a homeowner. They did give us the phone number of their distributor but they didn't stock the door we wanted. We've been trying to source a door since 9am & it's now 5:20 pm, we could have sourced parts for the Hubble telescope easier & quicker. National Hickman take ridiculous to a whole new level.