Look up your neighborhood potter and have one made.
I used the KA one for a couple years before getting one made that was a little bigger.
My KA has a really annoying rim that gets all gunked up constantly, the pictured one doesn't have this. Perhaps they realized it was a crap design, mine is about 6-7 years old, so it may be different now.
Anyhow, it will likely cost about the same to commission one as to order that one from KA.
I think just under 1.5L is a good size, YMMV of course, but it's a starting point.
Also, if you're looking up prefab stuff.... Pickling crock is a good search term for getting results with lids.