How easy/hard is it to repair a small gap on a jazz bass (manufacturing flaw) between pickguard and control plate? On this second hand Fender Custom Classic jazz bass, there's about a credit card width gap between the plate and pickguard just at the upper inside edge (below the neck pickup)--yes, I know, kind of shocking for such a high end bass. The gap only runs for maybe a quarter of an inch to a half inch along, after which pickguard and plate fit together as they should, but you can see the wiring below the gap if you look closely.... I'm thinking of buying it, but only if I know it can be fixed. Thanks!