As the subject line says; "I'm hunting for a commercial double boiler espresso machine." I want a commercial machine, not a prosumer machine (boiler(s) and other build issues). I've rebuilt one Marzocco Linea and don't want to repeat myself. How about other brands - didn't/doesn't Conti make a double boiler? Who else?
I don't necessarily want a complete basket case, nor do I want one that's already been refurbed (unless the price is very right). Anyone have leads for me?
edited: 1-group machines preferred, but 2-group compacts would also work.