We lucked out when we were cleaning out my mother-in-law's basement a few years ago. She had a bunch of Red wing crocks. All kinds of sizes from 1 gal. to 20 gal. No one else in her family had any interest so we took them. We had glass tops cut for them and use them for end tables/plant stands. We have a couple of smaller ones we use as they were designed now and then too.
It didn't hurt that my brother, who collects these things, about died when he saw them all.
I hope the kraut works out well. I haven't had homemade kraut in years.