I spent this afternoon/evening in the excellent company of Tony, a former road-racer of that club. It was a chance meeting -- he was the father of one half of the couple hosting the party --
Anyway -- he mentioned that an ageing friend of his (kent-based) might have some (proper - old-school framed etc. ) bikes for sale soon on account of becoming unable to enjoy them further.
I have pointed Tony towards here because I think this is definitely the place where hisfriend/their family will get the fairest price.