Just a thought but is it worth a shot asking the companies who make our ribs/raiders/lct's etc for a donation towards the repairs? They'll be able to off set it against tax if it's a "charitable" donation. Also try asking some of the competitors in the big sailing boats races if they have a spare training boat you can borrow, I think racing season is coming to an end so you never know. Dont ask dont get. Good luck jimbo.
It isnt that long ago that the damage could have been repaired for the cost of a box of biccies various and some fag stamps. Drakes J24 Red Alert got trashed a while back, afaik its still awaiting repair.