Good 60's Jazz Basses will ruin you. When I worked at GC, a guy brought in a '64 for trade that had been completely refinished in solid red polyester: neck, body, headstock and fretboard (think Larry Graham's white Moon- only fire engine red) and had a set of the old Seymour Duncan active Jazz pickups with the switches on the face as well as all replacement hardware. It STILL played and sounded like a monster. Even with verifying the neck, GC wouldn't do the trade and all the guy wanted was $600 for it. I didn't have the money or I would own that bass.