1974 1975 Fender Precision bass neck fretless

Up for sale is a Fender Precision bass. Pots and plate indicated 1974. Stamp is unreadable. It has been defretted and exists as such. Obviously, the work was done poorly. The slots were filled. Otherwise, it has cosmetic wear of a typical nature on headstock and back of neck. When strung up the action was high; it played without any notable dead notes as such. When removed, truss rod was adjusted and worked. When tightened it looks like at some point the neck develops a twist. I don't know how well it will set up in terms of action; as I said, with a higher action it worked fine.