I have been planning to switch over from 110 volt to 12 volt refrigeration and voila a feiend gave me a AB Cold machine that was taken out of a boat in working condition. I am wondering what other parts I need and where I can get instructions for the installation, Also can I use the evaporator that is part of the 110 unit or do I need a new one that is especially for the 12 volt Cold Machine. Thanks. Tim