if you have a used jockey box in the chicago area collecting dust that you'd be willing to part with, please let me know. Thanks!
somebody out there has to have one
I built one out of an igloo cooler and a 5 pass cold plate. Not for sale, but they are extremely easy to build.
Go to NFC Company (the CO2 place) by Damen/Diversey, they sometimes have used cold plates. I got my single-pass from them dirt cheap, and put it into a small 2 gallon Igloo lunch cooler. Works like a charm, doesn't use up much ice.