I have come across a 1952 P-Bass that has been refinished, also with a replaced chrome pick-up guard, and a replaced pick guard. Everything else (body, neck, pick ups, control knobs, pots, bridge, nut, machines, and bridge guards) are original. Assuming it plays well (I have not got my hands on it yet), I have been told by a vintage guitar dealer that refinishing immediately takes 40% off the value. Assuming that this instrument would be about $15,000 in original and excellent condition, I am guessing a fair price as a refinished instrument would be about $8000. Do my numbers look reasonable?