Hmm, Feed Trough?

We've only had one rain this summer and the paddocks are pretty near eaten bare, so it looks like we might have to start supplementing with hay soon.  The vet told us that the goats get worms from eating stuff off of the ground because when it gets so dry and the grass isn't growing, instead of grazing off the tips of the grass, they have to graze down to the ground.  We're supposed to keep their feed up off the dirt to minimize the ingestion of worms.  The problem is, we have no feeders to put hay in out in the fields.

The above picture is one of Tom's solutions.  I know it used to be a feed trough.  It's one of the things that Tom found abandoned out in one of the pastures, but the plastic liner is long gone.

Tom has a vision for it and, to be fair, it is not finished, but I'm not seeing it.