oh dear. Yeah, occurred to me soon as read the thing in full.

If hadnt been for that bloke who bought a car for a £1 off a d.j. would probably have read it over quicker.
Will have a very hard time getting £20 grand off of me though, if decides to pursue this, as miles-rich but cash poor. Have emailed him apologising & offering to pay re-listing fees (are there any?)