Really depends on the condition. The instrument is almost 50 years old. The wood is very thin and many instruments that old suffer from cracks or warps, in addition to the scratches shown in the photo. As merlin says, replacing all 4 tuners with UPTs is probably a good idea and a good luthier won't charge much for the installation. I've seen 1972 Kamakas in better condition than this sell for $600 on EBay. The value of this one depends on how much work it needs to bring it up to a condition that is acceptable to you.