Better Home Choice via eBay offers this 6-Foot Wooden Sliding Barn Door Arrow Hardware Track Set in Black for $39.99 with free shipping. That's $8 below our February mention and the lowest total price we've seen for such a set. (Outside of other eBay sellers, it's the best deal now by $14.) It includes a 72" rail, four wall hangers, two rollers, two door stops, and floor guide. (Door is not included.)