I'm looking to trade one of my beer engines for either a Ranco or Johnson digital temp controller. I bought both beer engines off of ebay UK and had them shipped to me. They were pulled from a pub, so they have seen some use and have the normal wear and tear that one would expect from such a unit. However, they do pump. The porcelain handle is chipped at the bottom where it meets the brass flange, but is hidden by the flange when attached.
The beer engine is a Chatsworth 1/2 pint model from Drinks Dispense Group. It has a cooling jacket. The pump assembly can be completely disassembled for cleaning and sanitising.
I'm taking part in the CMC group buy, so if you're interested and also taking part, we can make the trade when we're picking up our sacks of grain.