Ok, I recently purchased a Jackson C5A bass after playing another 5 string jackson and loving the neck. It arrived today with several issues. After a PayPal dispute, I settled for half of the price thinking it may be possible to fix it. I am looking this as a project and planning to have fun while repairing the bass; most importantly to learn a bit more about the instrument I play. Getting another neck is not an option as it has a rather unique heel dimensions. That being said, I don't know every neck out there. 1- The neck has a really bad bow, meaning it is warped inwards. Before you say: yes, the truss rod works fine and it is not about it. Even with it is fully turned clockwise and without any tension, there is around a 5mm distance at 12th fret. Really unplayable. 2- The fretboard is literally coming off near the headstock. My best guess is the nut came off at some point and the owner didn't care. So the pressure peeled off the fretboard. For the reference, the nut grove is deep and fingerboard starts just where the nut is located. Sorry for not putting this any more clear. 3 - Nut is loose, not a real issue. Here are some pictures: I also inted to take pictures as the repair progresses and turn this into a pictorial guide for this kind of repairs.