After getting the UV dye flashlight and glasses, it was extremely hard to locate the leak. I thought it was the frost plug around the starter. Bring it in to the garage for a better visual check, a pressure test revealed the only pin hole leak at the back corner of the head gasket. When out to add some gasket/radiator leak into the system. So far so good. Much better than paying out the +$1000 to get this job done.