[paulsherwin]

As a very rough guide, you should think about spending about £100 plus parts to have this restored. That may sound a lot, but you need someone with specialist skills and experience - think how much a central heating engineer would charge to fix your boiler. The biggest component cost is likely to be the record deck cartridge - originals are scarce and expensive, though you may be able to fit a 'Chinese cheapie' cartridge which only costs a couple of quid on eBay.