Can't answer your question, but would like to say that Challenge Business has done a tremendous amount of good for a lot of people; would be a real pity if this couldn't continue.
(My interest: ARC on one of their boats; marvellous experience.)
I think that the Challenge Business has has done an enormous amount for a lot of people, how else could anybody do a round the world experience in such well equipped yachts, I too did an ARC, and several other trips, and an excellent Heavy Weather week, nobody else can offer as much, such a shame that great yachts like these lay idle.
( perhaps Sunsail should buy them....RTW Flotillas??)