I had a thread earlier today concerning brew pots The general consensus was that a keggle was the best deal. A few questions. Should I buy a uasd one for $100 or new for $150? A SS ball valve or a Brass one? If I Buy a brass ball valve at home depot will it just screw into the fitting in the keggle? If I don't buy the thermometer can I buy a cap to cover the thermometer hole? Is there any other fittings I will need ?