I called up in the end. He is a breeder, not a BRC one. They are all either at the end of their breeding career or just not needed.
Only two left are: ermine buck, aged 12 months and castor doe aged 2 years.
Someone is picking up the other two tonight. (the one with only one eye....probably genetic, so they've decided not to breed from him or his mother again (the other castor.)
The man sounded ok, he has 20 rabbits and breeders them 2-3 times a year. i dont think they're in danger.
He said from where he lives it is nearly two hours to nottingham, so I think it is really too far either way.
Edited to ad: the one eyed boy has been advertised before, no one was itnerested in him that time.