4 string early 1900's double bass.. not sure of the size, but medium. nice string spacing, light and comfortable, low action. Spruce top, maple sides, maple neck, ebony fingerboard, possibly plywood back. only problem? tons of cracks (one in the back is about a foot long) and bad stain make the bass hard on the eyes. oh yeah, this baby SINGS arco, so that is another plus. guy wants a grand for it. should i do it?