I've got a pair of RTE sliders for sale that were on my '99 D1. Powder coated black. There is a little surface rust, but they're in very good condition. They were only on the truck for about two years before I sold it. They've been in indoor storage since. Comes with all the mounting hardware. $450, but I'm not sure on shipping them. Long and heavy. I'm in Wisconsin if that's convenient for pickup.
Pete