I have a 2003 Christopher 7/8 Busetto model DB304F5, with two Fishman Piezos installed. I am wondering what its value is today, though I don't want to sell it. I set the action myself with micrometer and when I recieved it, the sound post had fallen, I just guessed where it should be. I play jazz so it's plenty loud. It is in great shape. Anyone know its value?