We have a door!

Finally. The closet can now be closed. I didn't like looking at that dark gaping hole. Bob did a good job building the hardware using instructions found here: DIY barn door hardware  We didn't find quite the same hardware they used but made do with what was available. It was tricky finding a solid spot to put the bolts in the hollow core door. There is a shallow frame in it that was wide enough for them but limited the placement of the brackets. A solid door would allow them to be placed further in from the edges. Very pleased with it anyway. It rolls smoothly with no tendency to wobble. There are two little wheels attached to the back of the door that roll handily in a groove in the floor trim to keep the door from hitting the wall. A couple of bolts still need painting, and while doing that we plan to lower the door an inch so the gap under it isn't so big and the track will be visible above the door. This is a neat space saving option when you can't install a pocket door.